Home / 355,715.56-490,877.03-194,567.12

Finding the Fourth Proportional to 355,715.56, 490,877.03 and 194,567.12

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Solution

The fourth proportional to 355,715.56, 490,877.03 and 194,567.12 is: 268,496.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,715.56 : 490,877.03 = 194,567.12 : x
  2. Step 2: Convert to fraction form
    355,715.56/490,877.03 = 194,567.12/x
  3. Step 3: Cross multiply
    355,715.56x = 490,877.03 × 194,567.12
  4. Step 4: Simplify right side
    355,715.56x = 95,508,531,714.86
  5. Step 5: Solve for x
    x = 95,508,531,714.86/355,715.56
  6. Step 6: Final answer
    x = 268,496.92

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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.