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Finding the Fourth Proportional to 418,444.80, 577,447.02 and 227,463

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Solution

The fourth proportional to 418,444.80, 577,447.02 and 227,463 is: 313,895.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,444.80 : 577,447.02 = 227,463 : x
  2. Step 2: Convert to fraction form
    418,444.80/577,447.02 = 227,463/x
  3. Step 3: Cross multiply
    418,444.80x = 577,447.02 × 227,463
  4. Step 4: Simplify right side
    418,444.80x = 131,347,831,510.26
  5. Step 5: Solve for x
    x = 131,347,831,510.26/418,444.80
  6. Step 6: Final answer
    x = 313,895.24

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1.5x scale

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.