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Finding the Fourth Proportional to 304,433.80, 456,650.70 and 288,104.20

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Solution

The fourth proportional to 304,433.80, 456,650.70 and 288,104.20 is: 432,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,433.80 : 456,650.70 = 288,104.20 : x
  2. Step 2: Convert to fraction form
    304,433.80/456,650.70 = 288,104.20/x
  3. Step 3: Cross multiply
    304,433.80x = 456,650.70 × 288,104.20
  4. Step 4: Simplify right side
    304,433.80x = 131,562,984,602.94
  5. Step 5: Solve for x
    x = 131,562,984,602.94/304,433.80
  6. Step 6: Final answer
    x = 432,156.30

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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.