Home / 259,401.12-389,203.20-101,602.32

Finding the Fourth Proportional to 259,401.12, 389,203.20 and 101,602.32

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Solution

The fourth proportional to 259,401.12, 389,203.20 and 101,602.32 is: 152,443.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,401.12 : 389,203.20 = 101,602.32 : x
  2. Step 2: Convert to fraction form
    259,401.12/389,203.20 = 101,602.32/x
  3. Step 3: Cross multiply
    259,401.12x = 389,203.20 × 101,602.32
  4. Step 4: Simplify right side
    259,401.12x = 39,543,948,071.42
  5. Step 5: Solve for x
    x = 39,543,948,071.42/259,401.12
  6. Step 6: Final answer
    x = 152,443.24

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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.