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Finding the Fourth Proportional to 486,166.90, 729,245.55 and 153,742.90

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Solution

The fourth proportional to 486,166.90, 729,245.55 and 153,742.90 is: 230,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,166.90 : 729,245.55 = 153,742.90 : x
  2. Step 2: Convert to fraction form
    486,166.90/729,245.55 = 153,742.90/x
  3. Step 3: Cross multiply
    486,166.90x = 729,245.55 × 153,742.90
  4. Step 4: Simplify right side
    486,166.90x = 112,116,325,669.10
  5. Step 5: Solve for x
    x = 112,116,325,669.10/486,166.90
  6. Step 6: Final answer
    x = 230,612.83

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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.