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Finding the Fourth Proportional to 369,370.79, 509,731.68 and 199,604.91

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Solution

The fourth proportional to 369,370.79, 509,731.68 and 199,604.91 is: 275,454.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,370.79 : 509,731.68 = 199,604.91 : x
  2. Step 2: Convert to fraction form
    369,370.79/509,731.68 = 199,604.91/x
  3. Step 3: Cross multiply
    369,370.79x = 509,731.68 × 199,604.91
  4. Step 4: Simplify right side
    369,370.79x = 101,744,946,110.55
  5. Step 5: Solve for x
    x = 101,744,946,110.55/369,370.79
  6. Step 6: Final answer
    x = 275,454.77

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1.5x scale

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.