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Finding the Fourth Proportional to 288,941.80, 433,239.90 and 148,973.80

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Solution

The fourth proportional to 288,941.80, 433,239.90 and 148,973.80 is: 223,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,941.80 : 433,239.90 = 148,973.80 : x
  2. Step 2: Convert to fraction form
    288,941.80/433,239.90 = 148,973.80/x
  3. Step 3: Cross multiply
    288,941.80x = 433,239.90 × 148,973.80
  4. Step 4: Simplify right side
    288,941.80x = 64,541,394,214.62
  5. Step 5: Solve for x
    x = 64,541,394,214.62/288,941.80
  6. Step 6: Final answer
    x = 223,371.61

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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.