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Finding the Fourth Proportional to 418,312.53, 577,274.94 and 227,325.90

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Solution

The fourth proportional to 418,312.53, 577,274.94 and 227,325.90 is: 313,711.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,312.53 : 577,274.94 = 227,325.90 : x
  2. Step 2: Convert to fraction form
    418,312.53/577,274.94 = 227,325.90/x
  3. Step 3: Cross multiply
    418,312.53x = 577,274.94 × 227,325.90
  4. Step 4: Simplify right side
    418,312.53x = 131,229,545,282.95
  5. Step 5: Solve for x
    x = 131,229,545,282.95/418,312.53
  6. Step 6: Final answer
    x = 313,711.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.