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Finding the Fourth Proportional to 401,525.90, 554,229.82 and 258,285.95

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Solution

The fourth proportional to 401,525.90, 554,229.82 and 258,285.95 is: 356,514.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,525.90 : 554,229.82 = 258,285.95 : x
  2. Step 2: Convert to fraction form
    401,525.90/554,229.82 = 258,285.95/x
  3. Step 3: Cross multiply
    401,525.90x = 554,229.82 × 258,285.95
  4. Step 4: Simplify right side
    401,525.90x = 143,149,773,700.04
  5. Step 5: Solve for x
    x = 143,149,773,700.04/401,525.90
  6. Step 6: Final answer
    x = 356,514.42

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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.