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Finding the Fourth Proportional to 260,065.70, 390,098.55 and 159,901.10

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Solution

The fourth proportional to 260,065.70, 390,098.55 and 159,901.10 is: 239,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,065.70 : 390,098.55 = 159,901.10 : x
  2. Step 2: Convert to fraction form
    260,065.70/390,098.55 = 159,901.10/x
  3. Step 3: Cross multiply
    260,065.70x = 390,098.55 × 159,901.10
  4. Step 4: Simplify right side
    260,065.70x = 62,377,187,253.41
  5. Step 5: Solve for x
    x = 62,377,187,253.41/260,065.70
  6. Step 6: Final answer
    x = 239,851.65

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1.5x scale

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.