Home / 208,859.28-288,218.08-113,363.94

Finding the Fourth Proportional to 208,859.28, 288,218.08 and 113,363.94

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Solution

The fourth proportional to 208,859.28, 288,218.08 and 113,363.94 is: 156,438.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,859.28 : 288,218.08 = 113,363.94 : x
  2. Step 2: Convert to fraction form
    208,859.28/288,218.08 = 113,363.94/x
  3. Step 3: Cross multiply
    208,859.28x = 288,218.08 × 113,363.94
  4. Step 4: Simplify right side
    208,859.28x = 32,673,537,128.04
  5. Step 5: Solve for x
    x = 32,673,537,128.04/208,859.28
  6. Step 6: Final answer
    x = 156,438.04

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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.