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Finding the Fourth Proportional to 443,860, 612,528.96 and 242,656

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Solution

The fourth proportional to 443,860, 612,528.96 and 242,656 is: 334,866.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,860 : 612,528.96 = 242,656 : x
  2. Step 2: Convert to fraction form
    443,860/612,528.96 = 242,656/x
  3. Step 3: Cross multiply
    443,860x = 612,528.96 × 242,656
  4. Step 4: Simplify right side
    443,860x = 148,633,827,317.76
  5. Step 5: Solve for x
    x = 148,633,827,317.76/443,860
  6. Step 6: Final answer
    x = 334,866.46

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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.