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Finding the Fourth Proportional to 247,220.20, 370,830.30 and 153,908.20

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Solution

The fourth proportional to 247,220.20, 370,830.30 and 153,908.20 is: 230,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,220.20 : 370,830.30 = 153,908.20 : x
  2. Step 2: Convert to fraction form
    247,220.20/370,830.30 = 153,908.20/x
  3. Step 3: Cross multiply
    247,220.20x = 370,830.30 × 153,908.20
  4. Step 4: Simplify right side
    247,220.20x = 57,073,823,978.46
  5. Step 5: Solve for x
    x = 57,073,823,978.46/247,220.20
  6. Step 6: Final answer
    x = 230,862.30

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1.5x scale

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.