Home / 668,156.64-1,002,405.06-218,907.96

Finding the Fourth Proportional to 668,156.64, 1,002,405.06 and 218,907.96

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Solution

The fourth proportional to 668,156.64, 1,002,405.06 and 218,907.96 is: 328,417.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,156.64 : 1,002,405.06 = 218,907.96 : x
  2. Step 2: Convert to fraction form
    668,156.64/1,002,405.06 = 218,907.96/x
  3. Step 3: Cross multiply
    668,156.64x = 1,002,405.06 × 218,907.96
  4. Step 4: Simplify right side
    668,156.64x = 219,434,446,778.28
  5. Step 5: Solve for x
    x = 219,434,446,778.28/668,156.64
  6. Step 6: Final answer
    x = 328,417.67

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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.