Home / 218,856.48-302,068.89-138,232.73

Finding the Fourth Proportional to 218,856.48, 302,068.89 and 138,232.73

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Solution

The fourth proportional to 218,856.48, 302,068.89 and 138,232.73 is: 190,790.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,856.48 : 302,068.89 = 138,232.73 : x
  2. Step 2: Convert to fraction form
    218,856.48/302,068.89 = 138,232.73/x
  3. Step 3: Cross multiply
    218,856.48x = 302,068.89 × 138,232.73
  4. Step 4: Simplify right side
    218,856.48x = 41,755,805,802.43
  5. Step 5: Solve for x
    x = 41,755,805,802.43/218,856.48
  6. Step 6: Final answer
    x = 190,790.81

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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.