Home / 401,550.30-554,156.79-240,374.16

Finding the Fourth Proportional to 401,550.30, 554,156.79 and 240,374.16

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Solution

The fourth proportional to 401,550.30, 554,156.79 and 240,374.16 is: 331,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,550.30 : 554,156.79 = 240,374.16 : x
  2. Step 2: Convert to fraction form
    401,550.30/554,156.79 = 240,374.16/x
  3. Step 3: Cross multiply
    401,550.30x = 554,156.79 × 240,374.16
  4. Step 4: Simplify right side
    401,550.30x = 133,204,972,904.55
  5. Step 5: Solve for x
    x = 133,204,972,904.55/401,550.30
  6. Step 6: Final answer
    x = 331,726.74

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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.