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Finding the Fourth Proportional to 288,803.30, 433,233.90 and 99,238.70

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Solution

The fourth proportional to 288,803.30, 433,233.90 and 99,238.70 is: 148,868.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,803.30 : 433,233.90 = 99,238.70 : x
  2. Step 2: Convert to fraction form
    288,803.30/433,233.90 = 99,238.70/x
  3. Step 3: Cross multiply
    288,803.30x = 433,233.90 × 99,238.70
  4. Step 4: Simplify right side
    288,803.30x = 42,993,569,031.93
  5. Step 5: Solve for x
    x = 42,993,569,031.93/288,803.30
  6. Step 6: Final answer
    x = 148,868.00

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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.