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Finding the Fourth Proportional to 218,740.74, 301,862.26 and 118,138.74

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Solution

The fourth proportional to 218,740.74, 301,862.26 and 118,138.74 is: 163,031.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,740.74 : 301,862.26 = 118,138.74 : x
  2. Step 2: Convert to fraction form
    218,740.74/301,862.26 = 118,138.74/x
  3. Step 3: Cross multiply
    218,740.74x = 301,862.26 × 118,138.74
  4. Step 4: Simplify right side
    218,740.74x = 35,661,626,065.64
  5. Step 5: Solve for x
    x = 35,661,626,065.64/218,740.74
  6. Step 6: Final answer
    x = 163,031.48

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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.