Home / 220,818.12-304,768.92-130,168.92

Finding the Fourth Proportional to 220,818.12, 304,768.92 and 130,168.92

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Solution

The fourth proportional to 220,818.12, 304,768.92 and 130,168.92 is: 179,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,818.12 : 304,768.92 = 130,168.92 : x
  2. Step 2: Convert to fraction form
    220,818.12/304,768.92 = 130,168.92/x
  3. Step 3: Cross multiply
    220,818.12x = 304,768.92 × 130,168.92
  4. Step 4: Simplify right side
    220,818.12x = 39,671,441,165.97
  5. Step 5: Solve for x
    x = 39,671,441,165.97/220,818.12
  6. Step 6: Final answer
    x = 179,656.64

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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.