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Finding the Fourth Proportional to 177,636.40, 266,227.80 and 72,336.40

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Solution

The fourth proportional to 177,636.40, 266,227.80 and 72,336.40 is: 108,412.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,636.40 : 266,227.80 = 72,336.40 : x
  2. Step 2: Convert to fraction form
    177,636.40/266,227.80 = 72,336.40/x
  3. Step 3: Cross multiply
    177,636.40x = 266,227.80 × 72,336.40
  4. Step 4: Simplify right side
    177,636.40x = 19,257,960,631.92
  5. Step 5: Solve for x
    x = 19,257,960,631.92/177,636.40
  6. Step 6: Final answer
    x = 108,412.24

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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.