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Finding the Fourth Proportional to 247,718.59, 341,840.22 and 140,289.40

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Solution

The fourth proportional to 247,718.59, 341,840.22 and 140,289.40 is: 193,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,718.59 : 341,840.22 = 140,289.40 : x
  2. Step 2: Convert to fraction form
    247,718.59/341,840.22 = 140,289.40/x
  3. Step 3: Cross multiply
    247,718.59x = 341,840.22 × 140,289.40
  4. Step 4: Simplify right side
    247,718.59x = 47,956,559,359.67
  5. Step 5: Solve for x
    x = 47,956,559,359.67/247,718.59
  6. Step 6: Final answer
    x = 193,592.90

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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.