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Finding the Fourth Proportional to 389,601, 583,958.58 and 164,821.32

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Solution

The fourth proportional to 389,601, 583,958.58 and 164,821.32 is: 247,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,601 : 583,958.58 = 164,821.32 : x
  2. Step 2: Convert to fraction form
    389,601/583,958.58 = 164,821.32/x
  3. Step 3: Cross multiply
    389,601x = 583,958.58 × 164,821.32
  4. Step 4: Simplify right side
    389,601x = 96,248,823,980.93
  5. Step 5: Solve for x
    x = 96,248,823,980.93/389,601
  6. Step 6: Final answer
    x = 247,044.60

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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.