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Finding the Fourth Proportional to 212,927, 318,726.16 and 156,830.44

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Solution

The fourth proportional to 212,927, 318,726.16 and 156,830.44 is: 234,756.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,927 : 318,726.16 = 156,830.44 : x
  2. Step 2: Convert to fraction form
    212,927/318,726.16 = 156,830.44/x
  3. Step 3: Cross multiply
    212,927x = 318,726.16 × 156,830.44
  4. Step 4: Simplify right side
    212,927x = 49,985,963,912.31
  5. Step 5: Solve for x
    x = 49,985,963,912.31/212,927
  6. Step 6: Final answer
    x = 234,756.34

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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.