Home / 260,296.20-390,444.30-155,233.80

Finding the Fourth Proportional to 260,296.20, 390,444.30 and 155,233.80

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Solution

The fourth proportional to 260,296.20, 390,444.30 and 155,233.80 is: 232,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,296.20 : 390,444.30 = 155,233.80 : x
  2. Step 2: Convert to fraction form
    260,296.20/390,444.30 = 155,233.80/x
  3. Step 3: Cross multiply
    260,296.20x = 390,444.30 × 155,233.80
  4. Step 4: Simplify right side
    260,296.20x = 60,610,152,377.34
  5. Step 5: Solve for x
    x = 60,610,152,377.34/260,296.20
  6. Step 6: Final answer
    x = 232,850.70

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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.