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Finding the Fourth Proportional to 247,255.40, 370,721.10 and 97,405.40

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Solution

The fourth proportional to 247,255.40, 370,721.10 and 97,405.40 is: 146,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,255.40 : 370,721.10 = 97,405.40 : x
  2. Step 2: Convert to fraction form
    247,255.40/370,721.10 = 97,405.40/x
  3. Step 3: Cross multiply
    247,255.40x = 370,721.10 × 97,405.40
  4. Step 4: Simplify right side
    247,255.40x = 36,110,237,033.94
  5. Step 5: Solve for x
    x = 36,110,237,033.94/247,255.40
  6. Step 6: Final answer
    x = 146,044.28

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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.