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Finding the Fourth Proportional to 171,425.79, 257,089.02 and 51,477.90

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Solution

The fourth proportional to 171,425.79, 257,089.02 and 51,477.90 is: 77,201.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,425.79 : 257,089.02 = 51,477.90 : x
  2. Step 2: Convert to fraction form
    171,425.79/257,089.02 = 51,477.90/x
  3. Step 3: Cross multiply
    171,425.79x = 257,089.02 × 51,477.90
  4. Step 4: Simplify right side
    171,425.79x = 13,234,402,862.66
  5. Step 5: Solve for x
    x = 13,234,402,862.66/171,425.79
  6. Step 6: Final answer
    x = 77,201.94

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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.