Home / 278,293.23-384,044.76-157,431.96

Finding the Fourth Proportional to 278,293.23, 384,044.76 and 157,431.96

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Solution

The fourth proportional to 278,293.23, 384,044.76 and 157,431.96 is: 217,256.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,293.23 : 384,044.76 = 157,431.96 : x
  2. Step 2: Convert to fraction form
    278,293.23/384,044.76 = 157,431.96/x
  3. Step 3: Cross multiply
    278,293.23x = 384,044.76 × 157,431.96
  4. Step 4: Simplify right side
    278,293.23x = 60,460,919,294.53
  5. Step 5: Solve for x
    x = 60,460,919,294.53/278,293.23
  6. Step 6: Final answer
    x = 217,256.16

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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.