Home / 231,330.40-346,995.60-81,739.60

Finding the Fourth Proportional to 231,330.40, 346,995.60 and 81,739.60

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Solution

The fourth proportional to 231,330.40, 346,995.60 and 81,739.60 is: 122,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,330.40 : 346,995.60 = 81,739.60 : x
  2. Step 2: Convert to fraction form
    231,330.40/346,995.60 = 81,739.60/x
  3. Step 3: Cross multiply
    231,330.40x = 346,995.60 × 81,739.60
  4. Step 4: Simplify right side
    231,330.40x = 28,363,281,545.76
  5. Step 5: Solve for x
    x = 28,363,281,545.76/231,330.40
  6. Step 6: Final answer
    x = 122,609.40

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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.