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Finding the Fourth Proportional to 212,737.06, 319,104.60 and 62,978.20

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Solution

The fourth proportional to 212,737.06, 319,104.60 and 62,978.20 is: 94,467.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,737.06 : 319,104.60 = 62,978.20 : x
  2. Step 2: Convert to fraction form
    212,737.06/319,104.60 = 62,978.20/x
  3. Step 3: Cross multiply
    212,737.06x = 319,104.60 × 62,978.20
  4. Step 4: Simplify right side
    212,737.06x = 20,096,633,319.72
  5. Step 5: Solve for x
    x = 20,096,633,319.72/212,737.06
  6. Step 6: Final answer
    x = 94,467.01

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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.