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Finding the Fourth Proportional to 371,214.72, 512,276.30 and 201,448.85

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Solution

The fourth proportional to 371,214.72, 512,276.30 and 201,448.85 is: 277,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,214.72 : 512,276.30 = 201,448.85 : x
  2. Step 2: Convert to fraction form
    371,214.72/512,276.30 = 201,448.85/x
  3. Step 3: Cross multiply
    371,214.72x = 512,276.30 × 201,448.85
  4. Step 4: Simplify right side
    371,214.72x = 103,197,467,948.63
  5. Step 5: Solve for x
    x = 103,197,467,948.63/371,214.72
  6. Step 6: Final answer
    x = 277,999.40

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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.