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Finding the Fourth Proportional to 356,758.56, 492,326.64 and 201,700.80

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Solution

The fourth proportional to 356,758.56, 492,326.64 and 201,700.80 is: 278,347.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,758.56 : 492,326.64 = 201,700.80 : x
  2. Step 2: Convert to fraction form
    356,758.56/492,326.64 = 201,700.80/x
  3. Step 3: Cross multiply
    356,758.56x = 492,326.64 × 201,700.80
  4. Step 4: Simplify right side
    356,758.56x = 99,302,677,149.31
  5. Step 5: Solve for x
    x = 99,302,677,149.31/356,758.56
  6. Step 6: Final answer
    x = 278,347.01

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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.