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Finding the Fourth Proportional to 245,672.20, 368,508.30 and 79,460.20

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Solution

The fourth proportional to 245,672.20, 368,508.30 and 79,460.20 is: 119,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,672.20 : 368,508.30 = 79,460.20 : x
  2. Step 2: Convert to fraction form
    245,672.20/368,508.30 = 79,460.20/x
  3. Step 3: Cross multiply
    245,672.20x = 368,508.30 × 79,460.20
  4. Step 4: Simplify right side
    245,672.20x = 29,281,743,219.66
  5. Step 5: Solve for x
    x = 29,281,743,219.66/245,672.20
  6. Step 6: Final answer
    x = 119,190.30

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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.