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Finding the Fourth Proportional to 259,239.75, 357,750.90 and 140,007.75

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Solution

The fourth proportional to 259,239.75, 357,750.90 and 140,007.75 is: 193,210.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,239.75 : 357,750.90 = 140,007.75 : x
  2. Step 2: Convert to fraction form
    259,239.75/357,750.90 = 140,007.75/x
  3. Step 3: Cross multiply
    259,239.75x = 357,750.90 × 140,007.75
  4. Step 4: Simplify right side
    259,239.75x = 50,087,898,569.48
  5. Step 5: Solve for x
    x = 50,087,898,569.48/259,239.75
  6. Step 6: Final answer
    x = 193,210.72

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1.5x scale

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.