Home / 203,000.34-280,138.32-112,356.48

Finding the Fourth Proportional to 203,000.34, 280,138.32 and 112,356.48

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Solution

The fourth proportional to 203,000.34, 280,138.32 and 112,356.48 is: 155,050.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,000.34 : 280,138.32 = 112,356.48 : x
  2. Step 2: Convert to fraction form
    203,000.34/280,138.32 = 112,356.48/x
  3. Step 3: Cross multiply
    203,000.34x = 280,138.32 × 112,356.48
  4. Step 4: Simplify right side
    203,000.34x = 31,475,355,548.31
  5. Step 5: Solve for x
    x = 31,475,355,548.31/203,000.34
  6. Step 6: Final answer
    x = 155,050.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.