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Finding the Fourth Proportional to 326,145.34, 489,156.18 and 101,508.58

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Solution

The fourth proportional to 326,145.34, 489,156.18 and 101,508.58 is: 152,243.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,145.34 : 489,156.18 = 101,508.58 : x
  2. Step 2: Convert to fraction form
    326,145.34/489,156.18 = 101,508.58/x
  3. Step 3: Cross multiply
    326,145.34x = 489,156.18 × 101,508.58
  4. Step 4: Simplify right side
    326,145.34x = 49,653,549,230.02
  5. Step 5: Solve for x
    x = 49,653,549,230.02/326,145.34
  6. Step 6: Final answer
    x = 152,243.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.