Home / 353,045.40-487,190.70-202,113.24

Finding the Fourth Proportional to 353,045.40, 487,190.70 and 202,113.24

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Solution

The fourth proportional to 353,045.40, 487,190.70 and 202,113.24 is: 278,909.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,045.40 : 487,190.70 = 202,113.24 : x
  2. Step 2: Convert to fraction form
    353,045.40/487,190.70 = 202,113.24/x
  3. Step 3: Cross multiply
    353,045.40x = 487,190.70 × 202,113.24
  4. Step 4: Simplify right side
    353,045.40x = 98,467,690,874.87
  5. Step 5: Solve for x
    x = 98,467,690,874.87/353,045.40
  6. Step 6: Final answer
    x = 278,909.43

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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.