Home / 355,535.12-490,638.41-194,390.13

Finding the Fourth Proportional to 355,535.12, 490,638.41 and 194,390.13

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Solution

The fourth proportional to 355,535.12, 490,638.41 and 194,390.13 is: 268,258.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,535.12 : 490,638.41 = 194,390.13 : x
  2. Step 2: Convert to fraction form
    355,535.12/490,638.41 = 194,390.13/x
  3. Step 3: Cross multiply
    355,535.12x = 490,638.41 × 194,390.13
  4. Step 4: Simplify right side
    355,535.12x = 95,375,264,233.40
  5. Step 5: Solve for x
    x = 95,375,264,233.40/355,535.12
  6. Step 6: Final answer
    x = 268,258.35

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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.