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Finding the Fourth Proportional to 243,365.04, 335,821.86 and 135,920.16

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Solution

The fourth proportional to 243,365.04, 335,821.86 and 135,920.16 is: 187,557.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,365.04 : 335,821.86 = 135,920.16 : x
  2. Step 2: Convert to fraction form
    243,365.04/335,821.86 = 135,920.16/x
  3. Step 3: Cross multiply
    243,365.04x = 335,821.86 × 135,920.16
  4. Step 4: Simplify right side
    243,365.04x = 45,644,960,942.70
  5. Step 5: Solve for x
    x = 45,644,960,942.70/243,365.04
  6. Step 6: Final answer
    x = 187,557.59

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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.