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Finding the Fourth Proportional to 445,642.68, 615,065.52 and 264,454.52

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Solution

The fourth proportional to 445,642.68, 615,065.52 and 264,454.52 is: 364,993.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,642.68 : 615,065.52 = 264,454.52 : x
  2. Step 2: Convert to fraction form
    445,642.68/615,065.52 = 264,454.52/x
  3. Step 3: Cross multiply
    445,642.68x = 615,065.52 × 264,454.52
  4. Step 4: Simplify right side
    445,642.68x = 162,656,856,860.15
  5. Step 5: Solve for x
    x = 162,656,856,860.15/445,642.68
  6. Step 6: Final answer
    x = 364,993.89

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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.