Home / 492,072.20-738,108.30-243,240.20

Finding the Fourth Proportional to 492,072.20, 738,108.30 and 243,240.20

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Solution

The fourth proportional to 492,072.20, 738,108.30 and 243,240.20 is: 364,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,072.20 : 738,108.30 = 243,240.20 : x
  2. Step 2: Convert to fraction form
    492,072.20/738,108.30 = 243,240.20/x
  3. Step 3: Cross multiply
    492,072.20x = 738,108.30 × 243,240.20
  4. Step 4: Simplify right side
    492,072.20x = 179,537,610,513.66
  5. Step 5: Solve for x
    x = 179,537,610,513.66/492,072.20
  6. Step 6: Final answer
    x = 364,860.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.