Home / 371,139.30-512,178.19-201,373.43

Finding the Fourth Proportional to 371,139.30, 512,178.19 and 201,373.43

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Solution

The fourth proportional to 371,139.30, 512,178.19 and 201,373.43 is: 277,898.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,139.30 : 512,178.19 = 201,373.43 : x
  2. Step 2: Convert to fraction form
    371,139.30/512,178.19 = 201,373.43/x
  3. Step 3: Cross multiply
    371,139.30x = 512,178.19 × 201,373.43
  4. Step 4: Simplify right side
    371,139.30x = 103,139,075,827.17
  5. Step 5: Solve for x
    x = 103,139,075,827.17/371,139.30
  6. Step 6: Final answer
    x = 277,898.56

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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.