Home / 430,344.09-645,810.17-149,861.34

Finding the Fourth Proportional to 430,344.09, 645,810.17 and 149,861.34

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Solution

The fourth proportional to 430,344.09, 645,810.17 and 149,861.34 is: 224,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,344.09 : 645,810.17 = 149,861.34 : x
  2. Step 2: Convert to fraction form
    430,344.09/645,810.17 = 149,861.34/x
  3. Step 3: Cross multiply
    430,344.09x = 645,810.17 × 149,861.34
  4. Step 4: Simplify right side
    430,344.09x = 96,781,976,712.52
  5. Step 5: Solve for x
    x = 96,781,976,712.52/430,344.09
  6. Step 6: Final answer
    x = 224,894.40

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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.