Home / 278,407.51-384,202.61-151,083.11

Finding the Fourth Proportional to 278,407.51, 384,202.61 and 151,083.11

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Solution

The fourth proportional to 278,407.51, 384,202.61 and 151,083.11 is: 208,494.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,407.51 : 384,202.61 = 151,083.11 : x
  2. Step 2: Convert to fraction form
    278,407.51/384,202.61 = 151,083.11/x
  3. Step 3: Cross multiply
    278,407.51x = 384,202.61 × 151,083.11
  4. Step 4: Simplify right side
    278,407.51x = 58,046,523,645.61
  5. Step 5: Solve for x
    x = 58,046,523,645.61/278,407.51
  6. Step 6: Final answer
    x = 208,494.82

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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.