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Finding the Fourth Proportional to 177,495, 266,281.38 and 66,687

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Solution

The fourth proportional to 177,495, 266,281.38 and 66,687 is: 100,045.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,495 : 266,281.38 = 66,687 : x
  2. Step 2: Convert to fraction form
    177,495/266,281.38 = 66,687/x
  3. Step 3: Cross multiply
    177,495x = 266,281.38 × 66,687
  4. Step 4: Simplify right side
    177,495x = 17,757,506,388.06
  5. Step 5: Solve for x
    x = 17,757,506,388.06/177,495
  6. Step 6: Final answer
    x = 100,045.11

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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.