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Finding the Fourth Proportional to 247,386.17, 371,103.55 and 69,894.56

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Solution

The fourth proportional to 247,386.17, 371,103.55 and 69,894.56 is: 104,848.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,386.17 : 371,103.55 = 69,894.56 : x
  2. Step 2: Convert to fraction form
    247,386.17/371,103.55 = 69,894.56/x
  3. Step 3: Cross multiply
    247,386.17x = 371,103.55 × 69,894.56
  4. Step 4: Simplify right side
    247,386.17x = 25,938,117,486.17
  5. Step 5: Solve for x
    x = 25,938,117,486.17/247,386.17
  6. Step 6: Final answer
    x = 104,848.70

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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.