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Finding the Fourth Proportional to 218,034.59, 300,820.12 and 127,325.12

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Solution

The fourth proportional to 218,034.59, 300,820.12 and 127,325.12 is: 175,669.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,034.59 : 300,820.12 = 127,325.12 : x
  2. Step 2: Convert to fraction form
    218,034.59/300,820.12 = 127,325.12/x
  3. Step 3: Cross multiply
    218,034.59x = 300,820.12 × 127,325.12
  4. Step 4: Simplify right side
    218,034.59x = 38,301,956,055.00
  5. Step 5: Solve for x
    x = 38,301,956,055.00/218,034.59
  6. Step 6: Final answer
    x = 175,669.18

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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.