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Finding the Fourth Proportional to 288,950.80, 433,253.40 and 148,982.80

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Solution

The fourth proportional to 288,950.80, 433,253.40 and 148,982.80 is: 223,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,950.80 : 433,253.40 = 148,982.80 : x
  2. Step 2: Convert to fraction form
    288,950.80/433,253.40 = 148,982.80/x
  3. Step 3: Cross multiply
    288,950.80x = 433,253.40 × 148,982.80
  4. Step 4: Simplify right side
    288,950.80x = 64,547,304,641.52
  5. Step 5: Solve for x
    x = 64,547,304,641.52/288,950.80
  6. Step 6: Final answer
    x = 223,385.10

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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.