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Finding the Fourth Proportional to 243,404.64, 335,419.92 and 186,108.88

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Solution

The fourth proportional to 243,404.64, 335,419.92 and 186,108.88 is: 256,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,404.64 : 335,419.92 = 186,108.88 : x
  2. Step 2: Convert to fraction form
    243,404.64/335,419.92 = 186,108.88/x
  3. Step 3: Cross multiply
    243,404.64x = 335,419.92 × 186,108.88
  4. Step 4: Simplify right side
    243,404.64x = 62,424,625,640.89
  5. Step 5: Solve for x
    x = 62,424,625,640.89/243,404.64
  6. Step 6: Final answer
    x = 256,464.40

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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.