Home / 439,142.59-605,947.89-255,421.81

Finding the Fourth Proportional to 439,142.59, 605,947.89 and 255,421.81

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Solution

The fourth proportional to 439,142.59, 605,947.89 and 255,421.81 is: 352,442.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,142.59 : 605,947.89 = 255,421.81 : x
  2. Step 2: Convert to fraction form
    439,142.59/605,947.89 = 255,421.81/x
  3. Step 3: Cross multiply
    439,142.59x = 605,947.89 × 255,421.81
  4. Step 4: Simplify right side
    439,142.59x = 154,772,306,829.48
  5. Step 5: Solve for x
    x = 154,772,306,829.48/439,142.59
  6. Step 6: Final answer
    x = 352,442.03

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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.