Home / 212,945.28-319,639.05-156,848.46

Finding the Fourth Proportional to 212,945.28, 319,639.05 and 156,848.46

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Solution

The fourth proportional to 212,945.28, 319,639.05 and 156,848.46 is: 235,435.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,945.28 : 319,639.05 = 156,848.46 : x
  2. Step 2: Convert to fraction form
    212,945.28/319,639.05 = 156,848.46/x
  3. Step 3: Cross multiply
    212,945.28x = 319,639.05 × 156,848.46
  4. Step 4: Simplify right side
    212,945.28x = 50,134,892,748.36
  5. Step 5: Solve for x
    x = 50,134,892,748.36/212,945.28
  6. Step 6: Final answer
    x = 235,435.57

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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.