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Finding the Fourth Proportional to 618,931.85, 928,390.08 and 169,652.30

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Solution

The fourth proportional to 618,931.85, 928,390.08 and 169,652.30 is: 254,476.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,931.85 : 928,390.08 = 169,652.30 : x
  2. Step 2: Convert to fraction form
    618,931.85/928,390.08 = 169,652.30/x
  3. Step 3: Cross multiply
    618,931.85x = 928,390.08 × 169,652.30
  4. Step 4: Simplify right side
    618,931.85x = 157,503,512,369.18
  5. Step 5: Solve for x
    x = 157,503,512,369.18/618,931.85
  6. Step 6: Final answer
    x = 254,476.34

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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.