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Finding the Fourth Proportional to 370,136.79, 510,790.39 and 200,370.92

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Solution

The fourth proportional to 370,136.79, 510,790.39 and 200,370.92 is: 276,512.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,136.79 : 510,790.39 = 200,370.92 : x
  2. Step 2: Convert to fraction form
    370,136.79/510,790.39 = 200,370.92/x
  3. Step 3: Cross multiply
    370,136.79x = 510,790.39 × 200,370.92
  4. Step 4: Simplify right side
    370,136.79x = 102,347,537,316.58
  5. Step 5: Solve for x
    x = 102,347,537,316.58/370,136.79
  6. Step 6: Final answer
    x = 276,512.74

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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.