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Finding the Fourth Proportional to 202,468.80, 303,703.20 and 90,148.80

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Solution

The fourth proportional to 202,468.80, 303,703.20 and 90,148.80 is: 135,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,468.80 : 303,703.20 = 90,148.80 : x
  2. Step 2: Convert to fraction form
    202,468.80/303,703.20 = 90,148.80/x
  3. Step 3: Cross multiply
    202,468.80x = 303,703.20 × 90,148.80
  4. Step 4: Simplify right side
    202,468.80x = 27,378,479,036.16
  5. Step 5: Solve for x
    x = 27,378,479,036.16/202,468.80
  6. Step 6: Final answer
    x = 135,223.20

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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.