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Finding the Fourth Proportional to 181,570.40, 272,088.30 and 131,755.40

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Solution

The fourth proportional to 181,570.40, 272,088.30 and 131,755.40 is: 197,439.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,570.40 : 272,088.30 = 131,755.40 : x
  2. Step 2: Convert to fraction form
    181,570.40/272,088.30 = 131,755.40/x
  3. Step 3: Cross multiply
    181,570.40x = 272,088.30 × 131,755.40
  4. Step 4: Simplify right side
    181,570.40x = 35,849,102,801.82
  5. Step 5: Solve for x
    x = 35,849,102,801.82/181,570.40
  6. Step 6: Final answer
    x = 197,439.14

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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.