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Finding the Fourth Proportional to 259,426.78, 357,954.52 and 157,505.90

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Solution

The fourth proportional to 259,426.78, 357,954.52 and 157,505.90 is: 217,325.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,426.78 : 357,954.52 = 157,505.90 : x
  2. Step 2: Convert to fraction form
    259,426.78/357,954.52 = 157,505.90/x
  3. Step 3: Cross multiply
    259,426.78x = 357,954.52 × 157,505.90
  4. Step 4: Simplify right side
    259,426.78x = 56,379,948,831.67
  5. Step 5: Solve for x
    x = 56,379,948,831.67/259,426.78
  6. Step 6: Final answer
    x = 217,325.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.