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Finding the Fourth Proportional to 463,075.77, 639,028.48 and 256,353.14

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Solution

The fourth proportional to 463,075.77, 639,028.48 and 256,353.14 is: 353,758.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,075.77 : 639,028.48 = 256,353.14 : x
  2. Step 2: Convert to fraction form
    463,075.77/639,028.48 = 256,353.14/x
  3. Step 3: Cross multiply
    463,075.77x = 639,028.48 × 256,353.14
  4. Step 4: Simplify right side
    463,075.77x = 163,816,957,397.43
  5. Step 5: Solve for x
    x = 163,816,957,397.43/463,075.77
  6. Step 6: Final answer
    x = 353,758.43

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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.