Home / 288,549.20-432,823.82-78,187.14

Finding the Fourth Proportional to 288,549.20, 432,823.82 and 78,187.14

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Solution

The fourth proportional to 288,549.20, 432,823.82 and 78,187.14 is: 117,280.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,549.20 : 432,823.82 = 78,187.14 : x
  2. Step 2: Convert to fraction form
    288,549.20/432,823.82 = 78,187.14/x
  3. Step 3: Cross multiply
    288,549.20x = 432,823.82 × 78,187.14
  4. Step 4: Simplify right side
    288,549.20x = 33,841,256,609.67
  5. Step 5: Solve for x
    x = 33,841,256,609.67/288,549.20
  6. Step 6: Final answer
    x = 117,280.72

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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.