Home / 272,205.12-408,258.72-101,395.20

Finding the Fourth Proportional to 272,205.12, 408,258.72 and 101,395.20

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Solution

The fourth proportional to 272,205.12, 408,258.72 and 101,395.20 is: 152,074.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,205.12 : 408,258.72 = 101,395.20 : x
  2. Step 2: Convert to fraction form
    272,205.12/408,258.72 = 101,395.20/x
  3. Step 3: Cross multiply
    272,205.12x = 408,258.72 × 101,395.20
  4. Step 4: Simplify right side
    272,205.12x = 41,395,474,566.14
  5. Step 5: Solve for x
    x = 41,395,474,566.14/272,205.12
  6. Step 6: Final answer
    x = 152,074.56

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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.