Home / 220,783.20-304,720.58-130,133.87

Finding the Fourth Proportional to 220,783.20, 304,720.58 and 130,133.87

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Solution

The fourth proportional to 220,783.20, 304,720.58 and 130,133.87 is: 179,608.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,783.20 : 304,720.58 = 130,133.87 : x
  2. Step 2: Convert to fraction form
    220,783.20/304,720.58 = 130,133.87/x
  3. Step 3: Cross multiply
    220,783.20x = 304,720.58 × 130,133.87
  4. Step 4: Simplify right side
    220,783.20x = 39,654,470,002.53
  5. Step 5: Solve for x
    x = 39,654,470,002.53/220,783.20
  6. Step 6: Final answer
    x = 179,608.18

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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.