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Finding the Fourth Proportional to 178,001.30, 266,483.55 and 172,817.30

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Solution

The fourth proportional to 178,001.30, 266,483.55 and 172,817.30 is: 258,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,001.30 : 266,483.55 = 172,817.30 : x
  2. Step 2: Convert to fraction form
    178,001.30/266,483.55 = 172,817.30/x
  3. Step 3: Cross multiply
    178,001.30x = 266,483.55 × 172,817.30
  4. Step 4: Simplify right side
    178,001.30x = 46,052,967,605.42
  5. Step 5: Solve for x
    x = 46,052,967,605.42/178,001.30
  6. Step 6: Final answer
    x = 258,722.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.