Home / 211,401.28-291,692.70-125,344.36

Finding the Fourth Proportional to 211,401.28, 291,692.70 and 125,344.36

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Solution

The fourth proportional to 211,401.28, 291,692.70 and 125,344.36 is: 172,950.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,401.28 : 291,692.70 = 125,344.36 : x
  2. Step 2: Convert to fraction form
    211,401.28/291,692.70 = 125,344.36/x
  3. Step 3: Cross multiply
    211,401.28x = 291,692.70 × 125,344.36
  4. Step 4: Simplify right side
    211,401.28x = 36,562,034,798.17
  5. Step 5: Solve for x
    x = 36,562,034,798.17/211,401.28
  6. Step 6: Final answer
    x = 172,950.87

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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.