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Finding the Fourth Proportional to 288,636.30, 432,771.05 and 253,168.83

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Solution

The fourth proportional to 288,636.30, 432,771.05 and 253,168.83 is: 379,592.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,636.30 : 432,771.05 = 253,168.83 : x
  2. Step 2: Convert to fraction form
    288,636.30/432,771.05 = 253,168.83/x
  3. Step 3: Cross multiply
    288,636.30x = 432,771.05 × 253,168.83
  4. Step 4: Simplify right side
    288,636.30x = 109,564,141,019.29
  5. Step 5: Solve for x
    x = 109,564,141,019.29/288,636.30
  6. Step 6: Final answer
    x = 379,592.38

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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.