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Finding the Fourth Proportional to 370,136.90, 510,790.55 and 200,371.02

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Solution

The fourth proportional to 370,136.90, 510,790.55 and 200,371.02 is: 276,512.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,136.90 : 510,790.55 = 200,371.02 : x
  2. Step 2: Convert to fraction form
    370,136.90/510,790.55 = 200,371.02/x
  3. Step 3: Cross multiply
    370,136.90x = 510,790.55 × 200,371.02
  4. Step 4: Simplify right side
    370,136.90x = 102,347,624,592.83
  5. Step 5: Solve for x
    x = 102,347,624,592.83/370,136.90
  6. Step 6: Final answer
    x = 276,512.89

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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.