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Finding the Fourth Proportional to 353,521.52, 487,869.96 and 192,386.96

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Solution

The fourth proportional to 353,521.52, 487,869.96 and 192,386.96 is: 265,499.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,521.52 : 487,869.96 = 192,386.96 : x
  2. Step 2: Convert to fraction form
    353,521.52/487,869.96 = 192,386.96/x
  3. Step 3: Cross multiply
    353,521.52x = 487,869.96 × 192,386.96
  4. Step 4: Simplify right side
    353,521.52x = 93,859,818,479.72
  5. Step 5: Solve for x
    x = 93,859,818,479.72/353,521.52
  6. Step 6: Final answer
    x = 265,499.59

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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.