Home / 260,184.20-390,276.30-102,360.20

Finding the Fourth Proportional to 260,184.20, 390,276.30 and 102,360.20

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Solution

The fourth proportional to 260,184.20, 390,276.30 and 102,360.20 is: 153,540.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,184.20 : 390,276.30 = 102,360.20 : x
  2. Step 2: Convert to fraction form
    260,184.20/390,276.30 = 102,360.20/x
  3. Step 3: Cross multiply
    260,184.20x = 390,276.30 × 102,360.20
  4. Step 4: Simplify right side
    260,184.20x = 39,948,760,123.26
  5. Step 5: Solve for x
    x = 39,948,760,123.26/260,184.20
  6. Step 6: Final answer
    x = 153,540.30

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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.