Home / 430,172.15-645,344.42-240,901.74

Finding the Fourth Proportional to 430,172.15, 645,344.42 and 240,901.74

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Solution

The fourth proportional to 430,172.15, 645,344.42 and 240,901.74 is: 361,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,172.15 : 645,344.42 = 240,901.74 : x
  2. Step 2: Convert to fraction form
    430,172.15/645,344.42 = 240,901.74/x
  3. Step 3: Cross multiply
    430,172.15x = 645,344.42 × 240,901.74
  4. Step 4: Simplify right side
    430,172.15x = 155,464,592,472.78
  5. Step 5: Solve for x
    x = 155,464,592,472.78/430,172.15
  6. Step 6: Final answer
    x = 361,400.88

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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.