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Finding the Fourth Proportional to 342,002.55, 479,984.55 and 342,002.55

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Solution

The fourth proportional to 342,002.55, 479,984.55 and 342,002.55 is: 479,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,002.55 : 479,984.55 = 342,002.55 : x
  2. Step 2: Convert to fraction form
    342,002.55/479,984.55 = 342,002.55/x
  3. Step 3: Cross multiply
    342,002.55x = 479,984.55 × 342,002.55
  4. Step 4: Simplify right side
    342,002.55x = 164,155,940,060.60
  5. Step 5: Solve for x
    x = 164,155,940,060.60/342,002.55
  6. Step 6: Final answer
    x = 479,984.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.