Home / 202,349.18-279,240.15-111,703.20

Finding the Fourth Proportional to 202,349.18, 279,240.15 and 111,703.20

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Solution

The fourth proportional to 202,349.18, 279,240.15 and 111,703.20 is: 154,149.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,349.18 : 279,240.15 = 111,703.20 : x
  2. Step 2: Convert to fraction form
    202,349.18/279,240.15 = 111,703.20/x
  3. Step 3: Cross multiply
    202,349.18x = 279,240.15 × 111,703.20
  4. Step 4: Simplify right side
    202,349.18x = 31,192,018,323.48
  5. Step 5: Solve for x
    x = 31,192,018,323.48/202,349.18
  6. Step 6: Final answer
    x = 154,149.47

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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.