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Finding the Fourth Proportional to 243,360.72, 335,798.64 and 135,925.20

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Solution

The fourth proportional to 243,360.72, 335,798.64 and 135,925.20 is: 187,554.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,360.72 : 335,798.64 = 135,925.20 : x
  2. Step 2: Convert to fraction form
    243,360.72/335,798.64 = 135,925.20/x
  3. Step 3: Cross multiply
    243,360.72x = 335,798.64 × 135,925.20
  4. Step 4: Simplify right side
    243,360.72x = 45,643,497,301.73
  5. Step 5: Solve for x
    x = 45,643,497,301.73/243,360.72
  6. Step 6: Final answer
    x = 187,554.91

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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.