Home / 418,318.18-577,218.98-246,133.78

Finding the Fourth Proportional to 418,318.18, 577,218.98 and 246,133.78

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Solution

The fourth proportional to 418,318.18, 577,218.98 and 246,133.78 is: 339,629.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,318.18 : 577,218.98 = 246,133.78 : x
  2. Step 2: Convert to fraction form
    418,318.18/577,218.98 = 246,133.78/x
  3. Step 3: Cross multiply
    418,318.18x = 577,218.98 × 246,133.78
  4. Step 4: Simplify right side
    418,318.18x = 142,073,088,607.43
  5. Step 5: Solve for x
    x = 142,073,088,607.43/418,318.18
  6. Step 6: Final answer
    x = 339,629.25

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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.