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Finding the Fourth Proportional to 203,000.88, 280,141.76 and 112,363.08

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Solution

The fourth proportional to 203,000.88, 280,141.76 and 112,363.08 is: 155,061.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,000.88 : 280,141.76 = 112,363.08 : x
  2. Step 2: Convert to fraction form
    203,000.88/280,141.76 = 112,363.08/x
  3. Step 3: Cross multiply
    203,000.88x = 280,141.76 × 112,363.08
  4. Step 4: Simplify right side
    203,000.88x = 31,477,590,990.22
  5. Step 5: Solve for x
    x = 31,477,590,990.22/203,000.88
  6. Step 6: Final answer
    x = 155,061.35

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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.