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Finding the Fourth Proportional to 243,359.82, 365,040.54 and 74,878.98

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Solution

The fourth proportional to 243,359.82, 365,040.54 and 74,878.98 is: 112,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,359.82 : 365,040.54 = 74,878.98 : x
  2. Step 2: Convert to fraction form
    243,359.82/365,040.54 = 74,878.98/x
  3. Step 3: Cross multiply
    243,359.82x = 365,040.54 × 74,878.98
  4. Step 4: Simplify right side
    243,359.82x = 27,333,863,293.85
  5. Step 5: Solve for x
    x = 27,333,863,293.85/243,359.82
  6. Step 6: Final answer
    x = 112,318.72

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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.