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Finding the Fourth Proportional to 218,732.85, 301,851.27 and 118,130.85

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Solution

The fourth proportional to 218,732.85, 301,851.27 and 118,130.85 is: 163,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,732.85 : 301,851.27 = 118,130.85 : x
  2. Step 2: Convert to fraction form
    218,732.85/301,851.27 = 118,130.85/x
  3. Step 3: Cross multiply
    218,732.85x = 301,851.27 × 118,130.85
  4. Step 4: Simplify right side
    218,732.85x = 35,657,947,098.68
  5. Step 5: Solve for x
    x = 35,657,947,098.68/218,732.85
  6. Step 6: Final answer
    x = 163,020.54

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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.