Home / 218,810.43-328,079.57-92,385.63

Finding the Fourth Proportional to 218,810.43, 328,079.57 and 92,385.63

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Solution

The fourth proportional to 218,810.43, 328,079.57 and 92,385.63 is: 138,520.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,810.43 : 328,079.57 = 92,385.63 : x
  2. Step 2: Convert to fraction form
    218,810.43/328,079.57 = 92,385.63/x
  3. Step 3: Cross multiply
    218,810.43x = 328,079.57 × 92,385.63
  4. Step 4: Simplify right side
    218,810.43x = 30,309,837,302.65
  5. Step 5: Solve for x
    x = 30,309,837,302.65/218,810.43
  6. Step 6: Final answer
    x = 138,520.99

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1.5x scale

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.