Home / 257,260.46-386,022.38-122,477.00

Finding the Fourth Proportional to 257,260.46, 386,022.38 and 122,477.00

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Solution

The fourth proportional to 257,260.46, 386,022.38 and 122,477.00 is: 183,778.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,260.46 : 386,022.38 = 122,477.00 : x
  2. Step 2: Convert to fraction form
    257,260.46/386,022.38 = 122,477.00/x
  3. Step 3: Cross multiply
    257,260.46x = 386,022.38 × 122,477.00
  4. Step 4: Simplify right side
    257,260.46x = 47,278,860,492.76
  5. Step 5: Solve for x
    x = 47,278,860,492.76/257,260.46
  6. Step 6: Final answer
    x = 183,778.19

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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.