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Finding the Fourth Proportional to 247,699.80, 371,476.80 and 70,222.32

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Solution

The fourth proportional to 247,699.80, 371,476.80 and 70,222.32 is: 105,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,699.80 : 371,476.80 = 70,222.32 : x
  2. Step 2: Convert to fraction form
    247,699.80/371,476.80 = 70,222.32/x
  3. Step 3: Cross multiply
    247,699.80x = 371,476.80 × 70,222.32
  4. Step 4: Simplify right side
    247,699.80x = 26,085,962,722.18
  5. Step 5: Solve for x
    x = 26,085,962,722.18/247,699.80
  6. Step 6: Final answer
    x = 105,312.81

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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.