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Finding the Fourth Proportional to 486,656.64, 730,054.42 and 149,725.40

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Solution

The fourth proportional to 486,656.64, 730,054.42 and 149,725.40 is: 224,609.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,656.64 : 730,054.42 = 149,725.40 : x
  2. Step 2: Convert to fraction form
    486,656.64/730,054.42 = 149,725.40/x
  3. Step 3: Cross multiply
    486,656.64x = 730,054.42 × 149,725.40
  4. Step 4: Simplify right side
    486,656.64x = 109,307,690,056.27
  5. Step 5: Solve for x
    x = 109,307,690,056.27/486,656.64
  6. Step 6: Final answer
    x = 224,609.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.