Home / 355,549.12-490,781.28-204,706.24

Finding the Fourth Proportional to 355,549.12, 490,781.28 and 204,706.24

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Solution

The fourth proportional to 355,549.12, 490,781.28 and 204,706.24 is: 282,565.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,549.12 : 490,781.28 = 204,706.24 : x
  2. Step 2: Convert to fraction form
    355,549.12/490,781.28 = 204,706.24/x
  3. Step 3: Cross multiply
    355,549.12x = 490,781.28 × 204,706.24
  4. Step 4: Simplify right side
    355,549.12x = 100,465,990,491.19
  5. Step 5: Solve for x
    x = 100,465,990,491.19/355,549.12
  6. Step 6: Final answer
    x = 282,565.71

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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.