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Finding the Fourth Proportional to 439,940.95, 607,118.52 and 238,736.95

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Solution

The fourth proportional to 439,940.95, 607,118.52 and 238,736.95 is: 329,457.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,940.95 : 607,118.52 = 238,736.95 : x
  2. Step 2: Convert to fraction form
    439,940.95/607,118.52 = 238,736.95/x
  3. Step 3: Cross multiply
    439,940.95x = 607,118.52 × 238,736.95
  4. Step 4: Simplify right side
    439,940.95x = 144,941,624,531.48
  5. Step 5: Solve for x
    x = 144,941,624,531.48/439,940.95
  6. Step 6: Final answer
    x = 329,457.00

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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.