Home / 260,098.20-390,276.90-147,864.60

Finding the Fourth Proportional to 260,098.20, 390,276.90 and 147,864.60

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Solution

The fourth proportional to 260,098.20, 390,276.90 and 147,864.60 is: 221,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,098.20 : 390,276.90 = 147,864.60 : x
  2. Step 2: Convert to fraction form
    260,098.20/390,276.90 = 147,864.60/x
  3. Step 3: Cross multiply
    260,098.20x = 390,276.90 × 147,864.60
  4. Step 4: Simplify right side
    260,098.20x = 57,708,137,707.74
  5. Step 5: Solve for x
    x = 57,708,137,707.74/260,098.20
  6. Step 6: Final answer
    x = 221,870.58

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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.