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Finding the Fourth Proportional to 108,385.98, 162,630.81 and 38,298.30

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Solution

The fourth proportional to 108,385.98, 162,630.81 and 38,298.30 is: 57,465.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,385.98 : 162,630.81 = 38,298.30 : x
  2. Step 2: Convert to fraction form
    108,385.98/162,630.81 = 38,298.30/x
  3. Step 3: Cross multiply
    108,385.98x = 162,630.81 × 38,298.30
  4. Step 4: Simplify right side
    108,385.98x = 6,228,483,550.62
  5. Step 5: Solve for x
    x = 6,228,483,550.62/108,385.98
  6. Step 6: Final answer
    x = 57,465.77

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1.5x scale

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.