Home / 445,962.09-615,428.07-242,013

Finding the Fourth Proportional to 445,962.09, 615,428.07 and 242,013

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Solution

The fourth proportional to 445,962.09, 615,428.07 and 242,013 is: 333,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,962.09 : 615,428.07 = 242,013 : x
  2. Step 2: Convert to fraction form
    445,962.09/615,428.07 = 242,013/x
  3. Step 3: Cross multiply
    445,962.09x = 615,428.07 × 242,013
  4. Step 4: Simplify right side
    445,962.09x = 148,941,593,504.91
  5. Step 5: Solve for x
    x = 148,941,593,504.91/445,962.09
  6. Step 6: Final answer
    x = 333,978.15

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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.