Home / 257,500.90-386,360.70-124,312.60

Finding the Fourth Proportional to 257,500.90, 386,360.70 and 124,312.60

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Solution

The fourth proportional to 257,500.90, 386,360.70 and 124,312.60 is: 186,521.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,500.90 : 386,360.70 = 124,312.60 : x
  2. Step 2: Convert to fraction form
    257,500.90/386,360.70 = 124,312.60/x
  3. Step 3: Cross multiply
    257,500.90x = 386,360.70 × 124,312.60
  4. Step 4: Simplify right side
    257,500.90x = 48,029,503,154.82
  5. Step 5: Solve for x
    x = 48,029,503,154.82/257,500.90
  6. Step 6: Final answer
    x = 186,521.69

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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.