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Finding the Fourth Proportional to 212,881.10, 319,228.90 and 61,044.67

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Solution

The fourth proportional to 212,881.10, 319,228.90 and 61,044.67 is: 91,540.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,881.10 : 319,228.90 = 61,044.67 : x
  2. Step 2: Convert to fraction form
    212,881.10/319,228.90 = 61,044.67/x
  3. Step 3: Cross multiply
    212,881.10x = 319,228.90 × 61,044.67
  4. Step 4: Simplify right side
    212,881.10x = 19,487,223,101.39
  5. Step 5: Solve for x
    x = 19,487,223,101.39/212,881.10
  6. Step 6: Final answer
    x = 91,540.41

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1.5x scale

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.