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Finding the Fourth Proportional to 202,292.90, 303,548.70 and 89,990.45

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Solution

The fourth proportional to 202,292.90, 303,548.70 and 89,990.45 is: 135,034.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,292.90 : 303,548.70 = 89,990.45 : x
  2. Step 2: Convert to fraction form
    202,292.90/303,548.70 = 89,990.45/x
  3. Step 3: Cross multiply
    202,292.90x = 303,548.70 × 89,990.45
  4. Step 4: Simplify right side
    202,292.90x = 27,316,484,109.92
  5. Step 5: Solve for x
    x = 27,316,484,109.92/202,292.90
  6. Step 6: Final answer
    x = 135,034.32

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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.