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Finding the Fourth Proportional to 438,686.88, 605,388.09 and 237,482.88

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Solution

The fourth proportional to 438,686.88, 605,388.09 and 237,482.88 is: 327,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,686.88 : 605,388.09 = 237,482.88 : x
  2. Step 2: Convert to fraction form
    438,686.88/605,388.09 = 237,482.88/x
  3. Step 3: Cross multiply
    438,686.88x = 605,388.09 × 237,482.88
  4. Step 4: Simplify right side
    438,686.88x = 143,769,307,130.90
  5. Step 5: Solve for x
    x = 143,769,307,130.90/438,686.88
  6. Step 6: Final answer
    x = 327,726.48

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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.