Home / 278,931.24-384,980.94-165,732.12

Finding the Fourth Proportional to 278,931.24, 384,980.94 and 165,732.12

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Solution

The fourth proportional to 278,931.24, 384,980.94 and 165,732.12 is: 228,743.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,931.24 : 384,980.94 = 165,732.12 : x
  2. Step 2: Convert to fraction form
    278,931.24/384,980.94 = 165,732.12/x
  3. Step 3: Cross multiply
    278,931.24x = 384,980.94 × 165,732.12
  4. Step 4: Simplify right side
    278,931.24x = 63,803,707,345.79
  5. Step 5: Solve for x
    x = 63,803,707,345.79/278,931.24
  6. Step 6: Final answer
    x = 228,743.50

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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.