Home / 412,084.96-618,129.06-145,845.52

Finding the Fourth Proportional to 412,084.96, 618,129.06 and 145,845.52

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Solution

The fourth proportional to 412,084.96, 618,129.06 and 145,845.52 is: 218,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,084.96 : 618,129.06 = 145,845.52 : x
  2. Step 2: Convert to fraction form
    412,084.96/618,129.06 = 145,845.52/x
  3. Step 3: Cross multiply
    412,084.96x = 618,129.06 × 145,845.52
  4. Step 4: Simplify right side
    412,084.96x = 90,151,354,182.81
  5. Step 5: Solve for x
    x = 90,151,354,182.81/412,084.96
  6. Step 6: Final answer
    x = 218,768.85

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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.