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Finding the Fourth Proportional to 247,201.80, 370,802.70 and 171,094.20

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Solution

The fourth proportional to 247,201.80, 370,802.70 and 171,094.20 is: 256,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,201.80 : 370,802.70 = 171,094.20 : x
  2. Step 2: Convert to fraction form
    247,201.80/370,802.70 = 171,094.20/x
  3. Step 3: Cross multiply
    247,201.80x = 370,802.70 × 171,094.20
  4. Step 4: Simplify right side
    247,201.80x = 63,442,191,314.34
  5. Step 5: Solve for x
    x = 63,442,191,314.34/247,201.80
  6. Step 6: Final answer
    x = 256,641.30

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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.