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Finding the Fourth Proportional to 243,711.66, 336,360.15 and 148,248.30

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Solution

The fourth proportional to 243,711.66, 336,360.15 and 148,248.30 is: 204,605.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,711.66 : 336,360.15 = 148,248.30 : x
  2. Step 2: Convert to fraction form
    243,711.66/336,360.15 = 148,248.30/x
  3. Step 3: Cross multiply
    243,711.66x = 336,360.15 × 148,248.30
  4. Step 4: Simplify right side
    243,711.66x = 49,864,820,425.25
  5. Step 5: Solve for x
    x = 49,864,820,425.25/243,711.66
  6. Step 6: Final answer
    x = 204,605.81

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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.