Home / 220,635.08-304,466.80-122,512.20

Finding the Fourth Proportional to 220,635.08, 304,466.80 and 122,512.20

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Solution

The fourth proportional to 220,635.08, 304,466.80 and 122,512.20 is: 169,061.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,635.08 : 304,466.80 = 122,512.20 : x
  2. Step 2: Convert to fraction form
    220,635.08/304,466.80 = 122,512.20/x
  3. Step 3: Cross multiply
    220,635.08x = 304,466.80 × 122,512.20
  4. Step 4: Simplify right side
    220,635.08x = 37,300,896,882.40
  5. Step 5: Solve for x
    x = 37,300,896,882.40/220,635.08
  6. Step 6: Final answer
    x = 169,061.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.