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Finding the Fourth Proportional to 197,502.16, 272,555.08 and 108,078.16

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Solution

The fourth proportional to 197,502.16, 272,555.08 and 108,078.16 is: 149,149.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,502.16 : 272,555.08 = 108,078.16 : x
  2. Step 2: Convert to fraction form
    197,502.16/272,555.08 = 108,078.16/x
  3. Step 3: Cross multiply
    197,502.16x = 272,555.08 × 108,078.16
  4. Step 4: Simplify right side
    197,502.16x = 29,457,251,545.05
  5. Step 5: Solve for x
    x = 29,457,251,545.05/197,502.16
  6. Step 6: Final answer
    x = 149,149.01

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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.