Home / 445,840.20-615,259.42-254,857.72

Finding the Fourth Proportional to 445,840.20, 615,259.42 and 254,857.72

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Solution

The fourth proportional to 445,840.20, 615,259.42 and 254,857.72 is: 351,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,840.20 : 615,259.42 = 254,857.72 : x
  2. Step 2: Convert to fraction form
    445,840.20/615,259.42 = 254,857.72/x
  3. Step 3: Cross multiply
    445,840.20x = 615,259.42 × 254,857.72
  4. Step 4: Simplify right side
    445,840.20x = 156,803,612,989.72
  5. Step 5: Solve for x
    x = 156,803,612,989.72/445,840.20
  6. Step 6: Final answer
    x = 351,703.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.