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Finding the Fourth Proportional to 371,283.90, 512,372.28 and 201,518.04

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Solution

The fourth proportional to 371,283.90, 512,372.28 and 201,518.04 is: 278,095.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,283.90 : 512,372.28 = 201,518.04 : x
  2. Step 2: Convert to fraction form
    371,283.90/512,372.28 = 201,518.04/x
  3. Step 3: Cross multiply
    371,283.90x = 512,372.28 × 201,518.04
  4. Step 4: Simplify right side
    371,283.90x = 103,252,257,615.93
  5. Step 5: Solve for x
    x = 103,252,257,615.93/371,283.90
  6. Step 6: Final answer
    x = 278,095.17

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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.