Home / 269,281.68-371,586.87-156,111.72

Finding the Fourth Proportional to 269,281.68, 371,586.87 and 156,111.72

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Solution

The fourth proportional to 269,281.68, 371,586.87 and 156,111.72 is: 215,421.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,281.68 : 371,586.87 = 156,111.72 : x
  2. Step 2: Convert to fraction form
    269,281.68/371,586.87 = 156,111.72/x
  3. Step 3: Cross multiply
    269,281.68x = 371,586.87 × 156,111.72
  4. Step 4: Simplify right side
    269,281.68x = 58,009,065,405.12
  5. Step 5: Solve for x
    x = 58,009,065,405.12/269,281.68
  6. Step 6: Final answer
    x = 215,421.51

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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.