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Finding the Fourth Proportional to 431,538.12, 595,278.72 and 270,112.88

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Solution

The fourth proportional to 431,538.12, 595,278.72 and 270,112.88 is: 372,603.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,538.12 : 595,278.72 = 270,112.88 : x
  2. Step 2: Convert to fraction form
    431,538.12/595,278.72 = 270,112.88/x
  3. Step 3: Cross multiply
    431,538.12x = 595,278.72 × 270,112.88
  4. Step 4: Simplify right side
    431,538.12x = 160,792,449,461.91
  5. Step 5: Solve for x
    x = 160,792,449,461.91/431,538.12
  6. Step 6: Final answer
    x = 372,603.12

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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.