Home / 197,280.18-272,246.10-112,397.84

Finding the Fourth Proportional to 197,280.18, 272,246.10 and 112,397.84

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Solution

The fourth proportional to 197,280.18, 272,246.10 and 112,397.84 is: 155,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,280.18 : 272,246.10 = 112,397.84 : x
  2. Step 2: Convert to fraction form
    197,280.18/272,246.10 = 112,397.84/x
  3. Step 3: Cross multiply
    197,280.18x = 272,246.10 × 112,397.84
  4. Step 4: Simplify right side
    197,280.18x = 30,599,873,588.42
  5. Step 5: Solve for x
    x = 30,599,873,588.42/197,280.18
  6. Step 6: Final answer
    x = 155,108.71

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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.