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Finding the Fourth Proportional to 355,475.56, 490,238.34 and 294,950.28

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Solution

The fourth proportional to 355,475.56, 490,238.34 and 294,950.28 is: 406,767.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,475.56 : 490,238.34 = 294,950.28 : x
  2. Step 2: Convert to fraction form
    355,475.56/490,238.34 = 294,950.28/x
  3. Step 3: Cross multiply
    355,475.56x = 490,238.34 × 294,950.28
  4. Step 4: Simplify right side
    355,475.56x = 144,595,935,649.74
  5. Step 5: Solve for x
    x = 144,595,935,649.74/355,475.56
  6. Step 6: Final answer
    x = 406,767.59

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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.