Home / 296,821.68-445,066.08-128,236.80

Finding the Fourth Proportional to 296,821.68, 445,066.08 and 128,236.80

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Solution

The fourth proportional to 296,821.68, 445,066.08 and 128,236.80 is: 192,283.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,821.68 : 445,066.08 = 128,236.80 : x
  2. Step 2: Convert to fraction form
    296,821.68/445,066.08 = 128,236.80/x
  3. Step 3: Cross multiply
    296,821.68x = 445,066.08 × 128,236.80
  4. Step 4: Simplify right side
    296,821.68x = 57,073,849,887.74
  5. Step 5: Solve for x
    x = 57,073,849,887.74/296,821.68
  6. Step 6: Final answer
    x = 192,283.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.