Home / 289,487.28-433,943.52-137,417.76

Finding the Fourth Proportional to 289,487.28, 433,943.52 and 137,417.76

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Solution

The fourth proportional to 289,487.28, 433,943.52 and 137,417.76 is: 205,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,487.28 : 433,943.52 = 137,417.76 : x
  2. Step 2: Convert to fraction form
    289,487.28/433,943.52 = 137,417.76/x
  3. Step 3: Cross multiply
    289,487.28x = 433,943.52 × 137,417.76
  4. Step 4: Simplify right side
    289,487.28x = 59,631,546,484.92
  5. Step 5: Solve for x
    x = 59,631,546,484.92/289,487.28
  6. Step 6: Final answer
    x = 205,990.21

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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.