Home / 212,997.40-319,462.18-70,830.84

Finding the Fourth Proportional to 212,997.40, 319,462.18 and 70,830.84

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Solution

The fourth proportional to 212,997.40, 319,462.18 and 70,830.84 is: 106,234.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,997.40 : 319,462.18 = 70,830.84 : x
  2. Step 2: Convert to fraction form
    212,997.40/319,462.18 = 70,830.84/x
  3. Step 3: Cross multiply
    212,997.40x = 319,462.18 × 70,830.84
  4. Step 4: Simplify right side
    212,997.40x = 22,627,774,557.63
  5. Step 5: Solve for x
    x = 22,627,774,557.63/212,997.40
  6. Step 6: Final answer
    x = 106,234.98

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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.