Home / 218,816.10-301,965.98-118,214.10

Finding the Fourth Proportional to 218,816.10, 301,965.98 and 118,214.10

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Solution

The fourth proportional to 218,816.10, 301,965.98 and 118,214.10 is: 163,135.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,816.10 : 301,965.98 = 118,214.10 : x
  2. Step 2: Convert to fraction form
    218,816.10/301,965.98 = 118,214.10/x
  3. Step 3: Cross multiply
    218,816.10x = 301,965.98 × 118,214.10
  4. Step 4: Simplify right side
    218,816.10x = 35,696,635,965.25
  5. Step 5: Solve for x
    x = 35,696,635,965.25/218,816.10
  6. Step 6: Final answer
    x = 163,135.33

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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.