Home / 668,874.27-1,003,307.70-163,438.05

Finding the Fourth Proportional to 668,874.27, 1,003,307.70 and 163,438.05

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Solution

The fourth proportional to 668,874.27, 1,003,307.70 and 163,438.05 is: 245,156.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,874.27 : 1,003,307.70 = 163,438.05 : x
  2. Step 2: Convert to fraction form
    668,874.27/1,003,307.70 = 163,438.05/x
  3. Step 3: Cross multiply
    668,874.27x = 1,003,307.70 × 163,438.05
  4. Step 4: Simplify right side
    668,874.27x = 163,978,654,037.99
  5. Step 5: Solve for x
    x = 163,978,654,037.99/668,874.27
  6. Step 6: Final answer
    x = 245,156.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.