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Finding the Fourth Proportional to 202,977.92, 280,105.52 and 112,328.60

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Solution

The fourth proportional to 202,977.92, 280,105.52 and 112,328.60 is: 155,011.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,977.92 : 280,105.52 = 112,328.60 : x
  2. Step 2: Convert to fraction form
    202,977.92/280,105.52 = 112,328.60/x
  3. Step 3: Cross multiply
    202,977.92x = 280,105.52 × 112,328.60
  4. Step 4: Simplify right side
    202,977.92x = 31,463,860,913.87
  5. Step 5: Solve for x
    x = 31,463,860,913.87/202,977.92
  6. Step 6: Final answer
    x = 155,011.25

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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.