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Finding the Fourth Proportional to 443,868, 612,540 and 242,664

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Solution

The fourth proportional to 443,868, 612,540 and 242,664 is: 334,877.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,868 : 612,540 = 242,664 : x
  2. Step 2: Convert to fraction form
    443,868/612,540 = 242,664/x
  3. Step 3: Cross multiply
    443,868x = 612,540 × 242,664
  4. Step 4: Simplify right side
    443,868x = 148,641,406,560
  5. Step 5: Solve for x
    x = 148,641,406,560/443,868
  6. Step 6: Final answer
    x = 334,877.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.