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Finding the Fourth Proportional to 203,070.92, 280,385.70 and 163,005.08

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Solution

The fourth proportional to 203,070.92, 280,385.70 and 163,005.08 is: 225,065.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,070.92 : 280,385.70 = 163,005.08 : x
  2. Step 2: Convert to fraction form
    203,070.92/280,385.70 = 163,005.08/x
  3. Step 3: Cross multiply
    203,070.92x = 280,385.70 × 163,005.08
  4. Step 4: Simplify right side
    203,070.92x = 45,704,293,459.36
  5. Step 5: Solve for x
    x = 45,704,293,459.36/203,070.92
  6. Step 6: Final answer
    x = 225,065.67

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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.