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Finding the Fourth Proportional to 243,329.60, 364,995.28 and 74,848.78

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Solution

The fourth proportional to 243,329.60, 364,995.28 and 74,848.78 is: 112,273.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,329.60 : 364,995.28 = 74,848.78 : x
  2. Step 2: Convert to fraction form
    243,329.60/364,995.28 = 74,848.78/x
  3. Step 3: Cross multiply
    243,329.60x = 364,995.28 × 74,848.78
  4. Step 4: Simplify right side
    243,329.60x = 27,319,451,413.76
  5. Step 5: Solve for x
    x = 27,319,451,413.76/243,329.60
  6. Step 6: Final answer
    x = 112,273.44

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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.