Home / 226,145.25-339,373.40-78,401.25

Finding the Fourth Proportional to 226,145.25, 339,373.40 and 78,401.25

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Solution

The fourth proportional to 226,145.25, 339,373.40 and 78,401.25 is: 117,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,145.25 : 339,373.40 = 78,401.25 : x
  2. Step 2: Convert to fraction form
    226,145.25/339,373.40 = 78,401.25/x
  3. Step 3: Cross multiply
    226,145.25x = 339,373.40 × 78,401.25
  4. Step 4: Simplify right side
    226,145.25x = 26,607,298,384.74
  5. Step 5: Solve for x
    x = 26,607,298,384.74/226,145.25
  6. Step 6: Final answer
    x = 117,655.79

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1.5x scale

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.