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Finding the Fourth Proportional to 155,437.97, 214,504.40 and 88,369.97

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Solution

The fourth proportional to 155,437.97, 214,504.40 and 88,369.97 is: 121,950.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,437.97 : 214,504.40 = 88,369.97 : x
  2. Step 2: Convert to fraction form
    155,437.97/214,504.40 = 88,369.97/x
  3. Step 3: Cross multiply
    155,437.97x = 214,504.40 × 88,369.97
  4. Step 4: Simplify right side
    155,437.97x = 18,955,745,878.50
  5. Step 5: Solve for x
    x = 18,955,745,878.50/155,437.97
  6. Step 6: Final answer
    x = 121,950.55

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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.