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Finding the Fourth Proportional to 326,051.32, 489,078.72 and 148,434.16

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Solution

The fourth proportional to 326,051.32, 489,078.72 and 148,434.16 is: 222,652.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,051.32 : 489,078.72 = 148,434.16 : x
  2. Step 2: Convert to fraction form
    326,051.32/489,078.72 = 148,434.16/x
  3. Step 3: Cross multiply
    326,051.32x = 489,078.72 × 148,434.16
  4. Step 4: Simplify right side
    326,051.32x = 72,595,988,977.08
  5. Step 5: Solve for x
    x = 72,595,988,977.08/326,051.32
  6. Step 6: Final answer
    x = 222,652.03

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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.