Home / 355,581.88-490,733.22-202,666.84

Finding the Fourth Proportional to 355,581.88, 490,733.22 and 202,666.84

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Solution

The fourth proportional to 355,581.88, 490,733.22 and 202,666.84 is: 279,697.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,581.88 : 490,733.22 = 202,666.84 : x
  2. Step 2: Convert to fraction form
    355,581.88/490,733.22 = 202,666.84/x
  3. Step 3: Cross multiply
    355,581.88x = 490,733.22 × 202,666.84
  4. Step 4: Simplify right side
    355,581.88x = 99,455,350,980.42
  5. Step 5: Solve for x
    x = 99,455,350,980.42/355,581.88
  6. Step 6: Final answer
    x = 279,697.47

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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.