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Finding the Fourth Proportional to 418,402.29, 577,395.90 and 227,415.18

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Solution

The fourth proportional to 418,402.29, 577,395.90 and 227,415.18 is: 313,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,402.29 : 577,395.90 = 227,415.18 : x
  2. Step 2: Convert to fraction form
    418,402.29/577,395.90 = 227,415.18/x
  3. Step 3: Cross multiply
    418,402.29x = 577,395.90 × 227,415.18
  4. Step 4: Simplify right side
    418,402.29x = 131,308,592,529.76
  5. Step 5: Solve for x
    x = 131,308,592,529.76/418,402.29
  6. Step 6: Final answer
    x = 313,833.35

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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.