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Finding the Fourth Proportional to 218,744.25, 301,867.08 and 118,142.25

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Solution

The fourth proportional to 218,744.25, 301,867.08 and 118,142.25 is: 163,036.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,744.25 : 301,867.08 = 118,142.25 : x
  2. Step 2: Convert to fraction form
    218,744.25/301,867.08 = 118,142.25/x
  3. Step 3: Cross multiply
    218,744.25x = 301,867.08 × 118,142.25
  4. Step 4: Simplify right side
    218,744.25x = 35,663,256,032.13
  5. Step 5: Solve for x
    x = 35,663,256,032.13/218,744.25
  6. Step 6: Final answer
    x = 163,036.31

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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.