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Finding the Fourth Proportional to 177,557.40, 266,109.30 and 72,257.40

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Solution

The fourth proportional to 177,557.40, 266,109.30 and 72,257.40 is: 108,293.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,557.40 : 266,109.30 = 72,257.40 : x
  2. Step 2: Convert to fraction form
    177,557.40/266,109.30 = 72,257.40/x
  3. Step 3: Cross multiply
    177,557.40x = 266,109.30 × 72,257.40
  4. Step 4: Simplify right side
    177,557.40x = 19,228,366,133.82
  5. Step 5: Solve for x
    x = 19,228,366,133.82/177,557.40
  6. Step 6: Final answer
    x = 108,293.80

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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.