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Finding the Fourth Proportional to 203,487.04, 280,804.32 and 112,846.72

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Solution

The fourth proportional to 203,487.04, 280,804.32 and 112,846.72 is: 155,724.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,487.04 : 280,804.32 = 112,846.72 : x
  2. Step 2: Convert to fraction form
    203,487.04/280,804.32 = 112,846.72/x
  3. Step 3: Cross multiply
    203,487.04x = 280,804.32 × 112,846.72
  4. Step 4: Simplify right side
    203,487.04x = 31,687,846,473.83
  5. Step 5: Solve for x
    x = 31,687,846,473.83/203,487.04
  6. Step 6: Final answer
    x = 155,724.15

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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.