Home / 402,185.61-603,280.25-135,947.55

Finding the Fourth Proportional to 402,185.61, 603,280.25 and 135,947.55

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Solution

The fourth proportional to 402,185.61, 603,280.25 and 135,947.55 is: 203,921.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,185.61 : 603,280.25 = 135,947.55 : x
  2. Step 2: Convert to fraction form
    402,185.61/603,280.25 = 135,947.55/x
  3. Step 3: Cross multiply
    402,185.61x = 603,280.25 × 135,947.55
  4. Step 4: Simplify right side
    402,185.61x = 82,014,471,271.15
  5. Step 5: Solve for x
    x = 82,014,471,271.15/402,185.61
  6. Step 6: Final answer
    x = 203,921.94

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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.