Home / 432,921.40-649,382.10-152,402.20

Finding the Fourth Proportional to 432,921.40, 649,382.10 and 152,402.20

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Solution

The fourth proportional to 432,921.40, 649,382.10 and 152,402.20 is: 228,603.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,921.40 : 649,382.10 = 152,402.20 : x
  2. Step 2: Convert to fraction form
    432,921.40/649,382.10 = 152,402.20/x
  3. Step 3: Cross multiply
    432,921.40x = 649,382.10 × 152,402.20
  4. Step 4: Simplify right side
    432,921.40x = 98,967,260,680.62
  5. Step 5: Solve for x
    x = 98,967,260,680.62/432,921.40
  6. Step 6: Final answer
    x = 228,603.30

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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.