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Finding the Fourth Proportional to 118,230.60, 177,302.70 and 39,347.40

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Solution

The fourth proportional to 118,230.60, 177,302.70 and 39,347.40 is: 59,006.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,230.60 : 177,302.70 = 39,347.40 : x
  2. Step 2: Convert to fraction form
    118,230.60/177,302.70 = 39,347.40/x
  3. Step 3: Cross multiply
    118,230.60x = 177,302.70 × 39,347.40
  4. Step 4: Simplify right side
    118,230.60x = 6,976,400,257.98
  5. Step 5: Solve for x
    x = 6,976,400,257.98/118,230.60
  6. Step 6: Final answer
    x = 59,006.72

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1.5x scale

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.