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Finding the Fourth Proportional to 362,227.20, 499,910.40 and 211,315.20

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Solution

The fourth proportional to 362,227.20, 499,910.40 and 211,315.20 is: 291,636.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,227.20 : 499,910.40 = 211,315.20 : x
  2. Step 2: Convert to fraction form
    362,227.20/499,910.40 = 211,315.20/x
  3. Step 3: Cross multiply
    362,227.20x = 499,910.40 × 211,315.20
  4. Step 4: Simplify right side
    362,227.20x = 105,638,666,158.08
  5. Step 5: Solve for x
    x = 105,638,666,158.08/362,227.20
  6. Step 6: Final answer
    x = 291,636.48

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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.