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Finding the Fourth Proportional to 247,705.40, 341,831.53 and 134,528.15

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Solution

The fourth proportional to 247,705.40, 341,831.53 and 134,528.15 is: 185,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,705.40 : 341,831.53 = 134,528.15 : x
  2. Step 2: Convert to fraction form
    247,705.40/341,831.53 = 134,528.15/x
  3. Step 3: Cross multiply
    247,705.40x = 341,831.53 × 134,528.15
  4. Step 4: Simplify right side
    247,705.40x = 45,985,963,342.57
  5. Step 5: Solve for x
    x = 45,985,963,342.57/247,705.40
  6. Step 6: Final answer
    x = 185,647.80

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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.