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Finding the Fourth Proportional to 220,805.54, 304,751.40 and 130,156.22

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Solution

The fourth proportional to 220,805.54, 304,751.40 and 130,156.22 is: 179,639.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,805.54 : 304,751.40 = 130,156.22 : x
  2. Step 2: Convert to fraction form
    220,805.54/304,751.40 = 130,156.22/x
  3. Step 3: Cross multiply
    220,805.54x = 304,751.40 × 130,156.22
  4. Step 4: Simplify right side
    220,805.54x = 39,665,290,263.71
  5. Step 5: Solve for x
    x = 39,665,290,263.71/220,805.54
  6. Step 6: Final answer
    x = 179,639.02

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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.