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Finding the Fourth Proportional to 145,278.25, 200,494.92 and 88,700.56

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Solution

The fourth proportional to 145,278.25, 200,494.92 and 88,700.56 is: 122,413.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,278.25 : 200,494.92 = 88,700.56 : x
  2. Step 2: Convert to fraction form
    145,278.25/200,494.92 = 88,700.56/x
  3. Step 3: Cross multiply
    145,278.25x = 200,494.92 × 88,700.56
  4. Step 4: Simplify right side
    145,278.25x = 17,784,011,681.16
  5. Step 5: Solve for x
    x = 17,784,011,681.16/145,278.25
  6. Step 6: Final answer
    x = 122,413.45

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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.