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Finding the Fourth Proportional to 177,756.60, 266,537.70 and 72,456.60

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Solution

The fourth proportional to 177,756.60, 266,537.70 and 72,456.60 is: 108,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,756.60 : 266,537.70 = 72,456.60 : x
  2. Step 2: Convert to fraction form
    177,756.60/266,537.70 = 72,456.60/x
  3. Step 3: Cross multiply
    177,756.60x = 266,537.70 × 72,456.60
  4. Step 4: Simplify right side
    177,756.60x = 19,312,415,513.82
  5. Step 5: Solve for x
    x = 19,312,415,513.82/177,756.60
  6. Step 6: Final answer
    x = 108,645.28

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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.