Home / 260,607.10-390,967.98-148,340.20

Finding the Fourth Proportional to 260,607.10, 390,967.98 and 148,340.20

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Solution

The fourth proportional to 260,607.10, 390,967.98 and 148,340.20 is: 222,542.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,607.10 : 390,967.98 = 148,340.20 : x
  2. Step 2: Convert to fraction form
    260,607.10/390,967.98 = 148,340.20/x
  3. Step 3: Cross multiply
    260,607.10x = 390,967.98 × 148,340.20
  4. Step 4: Simplify right side
    260,607.10x = 57,996,268,346.80
  5. Step 5: Solve for x
    x = 57,996,268,346.80/260,607.10
  6. Step 6: Final answer
    x = 222,542.93

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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.