Home / 401,526.90-554,231.20-258,286.95

Finding the Fourth Proportional to 401,526.90, 554,231.20 and 258,286.95

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Solution

The fourth proportional to 401,526.90, 554,231.20 and 258,286.95 is: 356,515.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,526.90 : 554,231.20 = 258,286.95 : x
  2. Step 2: Convert to fraction form
    401,526.90/554,231.20 = 258,286.95/x
  3. Step 3: Cross multiply
    401,526.90x = 554,231.20 × 258,286.95
  4. Step 4: Simplify right side
    401,526.90x = 143,150,686,242.84
  5. Step 5: Solve for x
    x = 143,150,686,242.84/401,526.90
  6. Step 6: Final answer
    x = 356,515.81

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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.