Home / 212,384.84-318,623.34-64,637

Finding the Fourth Proportional to 212,384.84, 318,623.34 and 64,637

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Solution

The fourth proportional to 212,384.84, 318,623.34 and 64,637 is: 96,969.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,384.84 : 318,623.34 = 64,637 : x
  2. Step 2: Convert to fraction form
    212,384.84/318,623.34 = 64,637/x
  3. Step 3: Cross multiply
    212,384.84x = 318,623.34 × 64,637
  4. Step 4: Simplify right side
    212,384.84x = 20,594,856,827.58
  5. Step 5: Solve for x
    x = 20,594,856,827.58/212,384.84
  6. Step 6: Final answer
    x = 96,969.52

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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.