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Finding the Fourth Proportional to 319,726.94, 441,228.59 and 174,540.21

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Solution

The fourth proportional to 319,726.94, 441,228.59 and 174,540.21 is: 240,868.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,726.94 : 441,228.59 = 174,540.21 : x
  2. Step 2: Convert to fraction form
    319,726.94/441,228.59 = 174,540.21/x
  3. Step 3: Cross multiply
    319,726.94x = 441,228.59 × 174,540.21
  4. Step 4: Simplify right side
    319,726.94x = 77,012,131,192.95
  5. Step 5: Solve for x
    x = 77,012,131,192.95/319,726.94
  6. Step 6: Final answer
    x = 240,868.45

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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.