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Finding the Fourth Proportional to 326,051.88, 489,079.44 and 148,434.63

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Solution

The fourth proportional to 326,051.88, 489,079.44 and 148,434.63 is: 222,652.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,051.88 : 489,079.44 = 148,434.63 : x
  2. Step 2: Convert to fraction form
    326,051.88/489,079.44 = 148,434.63/x
  3. Step 3: Cross multiply
    326,051.88x = 489,079.44 × 148,434.63
  4. Step 4: Simplify right side
    326,051.88x = 72,596,325,717.01
  5. Step 5: Solve for x
    x = 72,596,325,717.01/326,051.88
  6. Step 6: Final answer
    x = 222,652.68

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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.