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Finding the Fourth Proportional to 388,751.52, 583,127.04 and 222,422.88

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Solution

The fourth proportional to 388,751.52, 583,127.04 and 222,422.88 is: 333,634.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,751.52 : 583,127.04 = 222,422.88 : x
  2. Step 2: Convert to fraction form
    388,751.52/583,127.04 = 222,422.88/x
  3. Step 3: Cross multiply
    388,751.52x = 583,127.04 × 222,422.88
  4. Step 4: Simplify right side
    388,751.52x = 129,700,795,642.68
  5. Step 5: Solve for x
    x = 129,700,795,642.68/388,751.52
  6. Step 6: Final answer
    x = 333,634.18

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1.5x scale

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.