Home / 320,860.20-442,648.08-193,465.02

Finding the Fourth Proportional to 320,860.20, 442,648.08 and 193,465.02

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Solution

The fourth proportional to 320,860.20, 442,648.08 and 193,465.02 is: 266,897.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,860.20 : 442,648.08 = 193,465.02 : x
  2. Step 2: Convert to fraction form
    320,860.20/442,648.08 = 193,465.02/x
  3. Step 3: Cross multiply
    320,860.20x = 442,648.08 × 193,465.02
  4. Step 4: Simplify right side
    320,860.20x = 85,636,919,650.16
  5. Step 5: Solve for x
    x = 85,636,919,650.16/320,860.20
  6. Step 6: Final answer
    x = 266,897.92

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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.