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Finding the Fourth Proportional to 202,490, 303,504.48 and 90,001.24

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Solution

The fourth proportional to 202,490, 303,504.48 and 90,001.24 is: 134,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,490 : 303,504.48 = 90,001.24 : x
  2. Step 2: Convert to fraction form
    202,490/303,504.48 = 90,001.24/x
  3. Step 3: Cross multiply
    202,490x = 303,504.48 × 90,001.24
  4. Step 4: Simplify right side
    202,490x = 27,315,779,545.56
  5. Step 5: Solve for x
    x = 27,315,779,545.56/202,490
  6. Step 6: Final answer
    x = 134,899.40

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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.