Home / 197,280.78-272,180.82-112,337.70

Finding the Fourth Proportional to 197,280.78, 272,180.82 and 112,337.70

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Solution

The fourth proportional to 197,280.78, 272,180.82 and 112,337.70 is: 154,988.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,280.78 : 272,180.82 = 112,337.70 : x
  2. Step 2: Convert to fraction form
    197,280.78/272,180.82 = 112,337.70/x
  3. Step 3: Cross multiply
    197,280.78x = 272,180.82 × 112,337.70
  4. Step 4: Simplify right side
    197,280.78x = 30,576,167,302.91
  5. Step 5: Solve for x
    x = 30,576,167,302.91/197,280.78
  6. Step 6: Final answer
    x = 154,988.07

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1.5x scale

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.