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Finding the Fourth Proportional to 288,924.80, 433,214.40 and 148,956.80

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Solution

The fourth proportional to 288,924.80, 433,214.40 and 148,956.80 is: 223,346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,924.80 : 433,214.40 = 148,956.80 : x
  2. Step 2: Convert to fraction form
    288,924.80/433,214.40 = 148,956.80/x
  3. Step 3: Cross multiply
    288,924.80x = 433,214.40 × 148,956.80
  4. Step 4: Simplify right side
    288,924.80x = 64,530,230,737.92
  5. Step 5: Solve for x
    x = 64,530,230,737.92/288,924.80
  6. Step 6: Final answer
    x = 223,346.11

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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.