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Finding the Fourth Proportional to 218,995.95, 302,105.79 and 141,444.93

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Solution

The fourth proportional to 218,995.95, 302,105.79 and 141,444.93 is: 195,123.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,995.95 : 302,105.79 = 141,444.93 : x
  2. Step 2: Convert to fraction form
    218,995.95/302,105.79 = 141,444.93/x
  3. Step 3: Cross multiply
    218,995.95x = 302,105.79 × 141,444.93
  4. Step 4: Simplify right side
    218,995.95x = 42,731,332,319.14
  5. Step 5: Solve for x
    x = 42,731,332,319.14/218,995.95
  6. Step 6: Final answer
    x = 195,123.85

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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.