Home / 202,418.16-279,335.52-111,779.76

Finding the Fourth Proportional to 202,418.16, 279,335.52 and 111,779.76

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Solution

The fourth proportional to 202,418.16, 279,335.52 and 111,779.76 is: 154,255.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,418.16 : 279,335.52 = 111,779.76 : x
  2. Step 2: Convert to fraction form
    202,418.16/279,335.52 = 111,779.76/x
  3. Step 3: Cross multiply
    202,418.16x = 279,335.52 × 111,779.76
  4. Step 4: Simplify right side
    202,418.16x = 31,224,057,385.08
  5. Step 5: Solve for x
    x = 31,224,057,385.08/202,418.16
  6. Step 6: Final answer
    x = 154,255.22

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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.