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Finding the Fourth Proportional to 437,681.36, 656,336.07 and 171,399.53

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Solution

The fourth proportional to 437,681.36, 656,336.07 and 171,399.53 is: 257,026.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,681.36 : 656,336.07 = 171,399.53 : x
  2. Step 2: Convert to fraction form
    437,681.36/656,336.07 = 171,399.53/x
  3. Step 3: Cross multiply
    437,681.36x = 656,336.07 × 171,399.53
  4. Step 4: Simplify right side
    437,681.36x = 112,495,695,560.89
  5. Step 5: Solve for x
    x = 112,495,695,560.89/437,681.36
  6. Step 6: Final answer
    x = 257,026.47

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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.