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Finding the Fourth Proportional to 169,854.20, 254,748.90 and 51,529.40

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Solution

The fourth proportional to 169,854.20, 254,748.90 and 51,529.40 is: 77,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,854.20 : 254,748.90 = 51,529.40 : x
  2. Step 2: Convert to fraction form
    169,854.20/254,748.90 = 51,529.40/x
  3. Step 3: Cross multiply
    169,854.20x = 254,748.90 × 51,529.40
  4. Step 4: Simplify right side
    169,854.20x = 13,127,057,967.66
  5. Step 5: Solve for x
    x = 13,127,057,967.66/169,854.20
  6. Step 6: Final answer
    x = 77,284.27

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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.