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Finding the Fourth Proportional to 247,749.64, 371,624.32 and 70,258.12

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Solution

The fourth proportional to 247,749.64, 371,624.32 and 70,258.12 is: 105,387.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,749.64 : 371,624.32 = 70,258.12 : x
  2. Step 2: Convert to fraction form
    247,749.64/371,624.32 = 70,258.12/x
  3. Step 3: Cross multiply
    247,749.64x = 371,624.32 × 70,258.12
  4. Step 4: Simplify right side
    247,749.64x = 26,109,626,069.48
  5. Step 5: Solve for x
    x = 26,109,626,069.48/247,749.64
  6. Step 6: Final answer
    x = 105,387.14

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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.