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Finding the Fourth Proportional to 212,351.84, 318,573.84 and 64,604

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Solution

The fourth proportional to 212,351.84, 318,573.84 and 64,604 is: 96,920.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,351.84 : 318,573.84 = 64,604 : x
  2. Step 2: Convert to fraction form
    212,351.84/318,573.84 = 64,604/x
  3. Step 3: Cross multiply
    212,351.84x = 318,573.84 × 64,604
  4. Step 4: Simplify right side
    212,351.84x = 20,581,144,359.36
  5. Step 5: Solve for x
    x = 20,581,144,359.36/212,351.84
  6. Step 6: Final answer
    x = 96,920.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.