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Finding the Fourth Proportional to 247,808.64, 371,831.98 and 135,484.32

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Solution

The fourth proportional to 247,808.64, 371,831.98 and 135,484.32 is: 203,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,808.64 : 371,831.98 = 135,484.32 : x
  2. Step 2: Convert to fraction form
    247,808.64/371,831.98 = 135,484.32/x
  3. Step 3: Cross multiply
    247,808.64x = 371,831.98 × 135,484.32
  4. Step 4: Simplify right side
    247,808.64x = 50,377,402,964.55
  5. Step 5: Solve for x
    x = 50,377,402,964.55/247,808.64
  6. Step 6: Final answer
    x = 203,291.55

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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.