Home / 260,434.20-390,780.90-148,200.60

Finding the Fourth Proportional to 260,434.20, 390,780.90 and 148,200.60

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Solution

The fourth proportional to 260,434.20, 390,780.90 and 148,200.60 is: 222,374.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,434.20 : 390,780.90 = 148,200.60 : x
  2. Step 2: Convert to fraction form
    260,434.20/390,780.90 = 148,200.60/x
  3. Step 3: Cross multiply
    260,434.20x = 390,780.90 × 148,200.60
  4. Step 4: Simplify right side
    260,434.20x = 57,913,963,848.54
  5. Step 5: Solve for x
    x = 57,913,963,848.54/260,434.20
  6. Step 6: Final answer
    x = 222,374.65

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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.