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Finding the Fourth Proportional to 144,891.79, 217,339.20 and 39,710.76

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Solution

The fourth proportional to 144,891.79, 217,339.20 and 39,710.76 is: 59,566.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,891.79 : 217,339.20 = 39,710.76 : x
  2. Step 2: Convert to fraction form
    144,891.79/217,339.20 = 39,710.76/x
  3. Step 3: Cross multiply
    144,891.79x = 217,339.20 × 39,710.76
  4. Step 4: Simplify right side
    144,891.79x = 8,630,703,994.77
  5. Step 5: Solve for x
    x = 8,630,703,994.77/144,891.79
  6. Step 6: Final answer
    x = 59,566.55

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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.