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Finding the Fourth Proportional to 288,832.80, 433,249.20 and 148,864.80

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Solution

The fourth proportional to 288,832.80, 433,249.20 and 148,864.80 is: 223,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,832.80 : 433,249.20 = 148,864.80 : x
  2. Step 2: Convert to fraction form
    288,832.80/433,249.20 = 148,864.80/x
  3. Step 3: Cross multiply
    288,832.80x = 433,249.20 × 148,864.80
  4. Step 4: Simplify right side
    288,832.80x = 64,495,555,508.16
  5. Step 5: Solve for x
    x = 64,495,555,508.16/288,832.80
  6. Step 6: Final answer
    x = 223,297.20

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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.