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Finding the Fourth Proportional to 228,001.45, 342,002.18 and 85,846.45

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Solution

The fourth proportional to 228,001.45, 342,002.18 and 85,846.45 is: 128,769.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,001.45 : 342,002.18 = 85,846.45 : x
  2. Step 2: Convert to fraction form
    228,001.45/342,002.18 = 85,846.45/x
  3. Step 3: Cross multiply
    228,001.45x = 342,002.18 × 85,846.45
  4. Step 4: Simplify right side
    228,001.45x = 29,359,673,045.26
  5. Step 5: Solve for x
    x = 29,359,673,045.26/228,001.45
  6. Step 6: Final answer
    x = 128,769.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.