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Finding the Fourth Proportional to 218,065.74, 300,886.61 and 127,404.19

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Solution

The fourth proportional to 218,065.74, 300,886.61 and 127,404.19 is: 175,792.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,065.74 : 300,886.61 = 127,404.19 : x
  2. Step 2: Convert to fraction form
    218,065.74/300,886.61 = 127,404.19/x
  3. Step 3: Cross multiply
    218,065.74x = 300,886.61 × 127,404.19
  4. Step 4: Simplify right side
    218,065.74x = 38,334,214,828.90
  5. Step 5: Solve for x
    x = 38,334,214,828.90/218,065.74
  6. Step 6: Final answer
    x = 175,792.01

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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.