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Finding the Fourth Proportional to 443,844, 612,506.88 and 242,640

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Solution

The fourth proportional to 443,844, 612,506.88 and 242,640 is: 334,844.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,844 : 612,506.88 = 242,640 : x
  2. Step 2: Convert to fraction form
    443,844/612,506.88 = 242,640/x
  3. Step 3: Cross multiply
    443,844x = 612,506.88 × 242,640
  4. Step 4: Simplify right side
    443,844x = 148,618,669,363.20
  5. Step 5: Solve for x
    x = 148,618,669,363.20/443,844
  6. Step 6: Final answer
    x = 334,844.38

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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.