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Finding the Fourth Proportional to 371,265.70, 512,343.57 and 201,499.78

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Solution

The fourth proportional to 371,265.70, 512,343.57 and 201,499.78 is: 278,068.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,265.70 : 512,343.57 = 201,499.78 : x
  2. Step 2: Convert to fraction form
    371,265.70/512,343.57 = 201,499.78/x
  3. Step 3: Cross multiply
    371,265.70x = 512,343.57 × 201,499.78
  4. Step 4: Simplify right side
    371,265.70x = 103,237,116,639.42
  5. Step 5: Solve for x
    x = 103,237,116,639.42/371,265.70
  6. Step 6: Final answer
    x = 278,068.02

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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.