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Finding the Fourth Proportional to 445,642.88, 614,988.18 and 254,655.81

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Solution

The fourth proportional to 445,642.88, 614,988.18 and 254,655.81 is: 351,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,642.88 : 614,988.18 = 254,655.81 : x
  2. Step 2: Convert to fraction form
    445,642.88/614,988.18 = 254,655.81/x
  3. Step 3: Cross multiply
    445,642.88x = 614,988.18 × 254,655.81
  4. Step 4: Simplify right side
    445,642.88x = 156,610,313,118.33
  5. Step 5: Solve for x
    x = 156,610,313,118.33/445,642.88
  6. Step 6: Final answer
    x = 351,425.60

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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.