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Finding the Fourth Proportional to 259,240.87, 357,773.70 and 142,977.07

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Solution

The fourth proportional to 259,240.87, 357,773.70 and 142,977.07 is: 197,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,240.87 : 357,773.70 = 142,977.07 : x
  2. Step 2: Convert to fraction form
    259,240.87/357,773.70 = 142,977.07/x
  3. Step 3: Cross multiply
    259,240.87x = 357,773.70 × 142,977.07
  4. Step 4: Simplify right side
    259,240.87x = 51,153,435,349.06
  5. Step 5: Solve for x
    x = 51,153,435,349.06/259,240.87
  6. Step 6: Final answer
    x = 197,320.10

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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.