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Finding the Fourth Proportional to 247,397.76, 371,111.63 and 69,918.05

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Solution

The fourth proportional to 247,397.76, 371,111.63 and 69,918.05 is: 104,881.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,397.76 : 371,111.63 = 69,918.05 : x
  2. Step 2: Convert to fraction form
    247,397.76/371,111.63 = 69,918.05/x
  3. Step 3: Cross multiply
    247,397.76x = 371,111.63 × 69,918.05
  4. Step 4: Simplify right side
    247,397.76x = 25,947,402,080.11
  5. Step 5: Solve for x
    x = 25,947,402,080.11/247,397.76
  6. Step 6: Final answer
    x = 104,881.31

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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.