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Finding the Fourth Proportional to 243,162.47, 335,557.24 and 135,730.22

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Solution

The fourth proportional to 243,162.47, 335,557.24 and 135,730.22 is: 187,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,162.47 : 335,557.24 = 135,730.22 : x
  2. Step 2: Convert to fraction form
    243,162.47/335,557.24 = 135,730.22/x
  3. Step 3: Cross multiply
    243,162.47x = 335,557.24 × 135,730.22
  4. Step 4: Simplify right side
    243,162.47x = 45,545,255,990.68
  5. Step 5: Solve for x
    x = 45,545,255,990.68/243,162.47
  6. Step 6: Final answer
    x = 187,303.80

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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.