Home / 326,721.60-490,082.40-202,305.60

Finding the Fourth Proportional to 326,721.60, 490,082.40 and 202,305.60

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Solution

The fourth proportional to 326,721.60, 490,082.40 and 202,305.60 is: 303,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,721.60 : 490,082.40 = 202,305.60 : x
  2. Step 2: Convert to fraction form
    326,721.60/490,082.40 = 202,305.60/x
  3. Step 3: Cross multiply
    326,721.60x = 490,082.40 × 202,305.60
  4. Step 4: Simplify right side
    326,721.60x = 99,146,413,981.44
  5. Step 5: Solve for x
    x = 99,146,413,981.44/326,721.60
  6. Step 6: Final answer
    x = 303,458.40

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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.