Home / 268,845.12-370,988.76-154,122.36

Finding the Fourth Proportional to 268,845.12, 370,988.76 and 154,122.36

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Solution

The fourth proportional to 268,845.12, 370,988.76 and 154,122.36 is: 212,678.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,845.12 : 370,988.76 = 154,122.36 : x
  2. Step 2: Convert to fraction form
    268,845.12/370,988.76 = 154,122.36/x
  3. Step 3: Cross multiply
    268,845.12x = 370,988.76 × 154,122.36
  4. Step 4: Simplify right side
    268,845.12x = 57,177,663,224.67
  5. Step 5: Solve for x
    x = 57,177,663,224.67/268,845.12
  6. Step 6: Final answer
    x = 212,678.82

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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.