Home / 401,939.52-554,681.84-220,625.07

Finding the Fourth Proportional to 401,939.52, 554,681.84 and 220,625.07

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Solution

The fourth proportional to 401,939.52, 554,681.84 and 220,625.07 is: 304,465.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,939.52 : 554,681.84 = 220,625.07 : x
  2. Step 2: Convert to fraction form
    401,939.52/554,681.84 = 220,625.07/x
  3. Step 3: Cross multiply
    401,939.52x = 554,681.84 × 220,625.07
  4. Step 4: Simplify right side
    401,939.52x = 122,376,718,674.60
  5. Step 5: Solve for x
    x = 122,376,718,674.60/401,939.52
  6. Step 6: Final answer
    x = 304,465.50

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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.