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Finding the Fourth Proportional to 369,958.08, 510,543.90 and 208,819.92

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Solution

The fourth proportional to 369,958.08, 510,543.90 and 208,819.92 is: 288,172.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,958.08 : 510,543.90 = 208,819.92 : x
  2. Step 2: Convert to fraction form
    369,958.08/510,543.90 = 208,819.92/x
  3. Step 3: Cross multiply
    369,958.08x = 510,543.90 × 208,819.92
  4. Step 4: Simplify right side
    369,958.08x = 106,611,736,354.49
  5. Step 5: Solve for x
    x = 106,611,736,354.49/369,958.08
  6. Step 6: Final answer
    x = 288,172.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.