Home / 278,383.23-384,068.52-157,523.20

Finding the Fourth Proportional to 278,383.23, 384,068.52 and 157,523.20

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Solution

The fourth proportional to 278,383.23, 384,068.52 and 157,523.20 is: 217,325.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,383.23 : 384,068.52 = 157,523.20 : x
  2. Step 2: Convert to fraction form
    278,383.23/384,068.52 = 157,523.20/x
  3. Step 3: Cross multiply
    278,383.23x = 384,068.52 × 157,523.20
  4. Step 4: Simplify right side
    278,383.23x = 60,499,701,329.49
  5. Step 5: Solve for x
    x = 60,499,701,329.49/278,383.23
  6. Step 6: Final answer
    x = 217,325.24

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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.