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Finding the Fourth Proportional to 355,368.08, 490,407.96 and 194,223.13

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Solution

The fourth proportional to 355,368.08, 490,407.96 and 194,223.13 is: 268,027.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,368.08 : 490,407.96 = 194,223.13 : x
  2. Step 2: Convert to fraction form
    355,368.08/490,407.96 = 194,223.13/x
  3. Step 3: Cross multiply
    355,368.08x = 490,407.96 × 194,223.13
  4. Step 4: Simplify right side
    355,368.08x = 95,248,568,470.43
  5. Step 5: Solve for x
    x = 95,248,568,470.43/355,368.08
  6. Step 6: Final answer
    x = 268,027.93

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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.