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Finding the Fourth Proportional to 355,575.74, 490,699.77 and 240,889.46

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Solution

The fourth proportional to 355,575.74, 490,699.77 and 240,889.46 is: 332,431.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,575.74 : 490,699.77 = 240,889.46 : x
  2. Step 2: Convert to fraction form
    355,575.74/490,699.77 = 240,889.46/x
  3. Step 3: Cross multiply
    355,575.74x = 490,699.77 × 240,889.46
  4. Step 4: Simplify right side
    355,575.74x = 118,204,402,617.42
  5. Step 5: Solve for x
    x = 118,204,402,617.42/355,575.74
  6. Step 6: Final answer
    x = 332,431.01

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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.