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Finding the Fourth Proportional to 439,991.08, 607,188 and 238,787.08

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Solution

The fourth proportional to 439,991.08, 607,188 and 238,787.08 is: 329,526.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,991.08 : 607,188 = 238,787.08 : x
  2. Step 2: Convert to fraction form
    439,991.08/607,188 = 238,787.08/x
  3. Step 3: Cross multiply
    439,991.08x = 607,188 × 238,787.08
  4. Step 4: Simplify right side
    439,991.08x = 144,988,649,531.04
  5. Step 5: Solve for x
    x = 144,988,649,531.04/439,991.08
  6. Step 6: Final answer
    x = 329,526.34

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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.