Home / 209,265.12-288,299.52-144,672.48

Finding the Fourth Proportional to 209,265.12, 288,299.52 and 144,672.48

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Solution

The fourth proportional to 209,265.12, 288,299.52 and 144,672.48 is: 199,311.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,265.12 : 288,299.52 = 144,672.48 : x
  2. Step 2: Convert to fraction form
    209,265.12/288,299.52 = 144,672.48/x
  3. Step 3: Cross multiply
    209,265.12x = 288,299.52 × 144,672.48
  4. Step 4: Simplify right side
    209,265.12x = 41,709,006,541.21
  5. Step 5: Solve for x
    x = 41,709,006,541.21/209,265.12
  6. Step 6: Final answer
    x = 199,311.79

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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.