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Finding the Fourth Proportional to 355,365.68, 490,542.90 and 240,588.20

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Solution

The fourth proportional to 355,365.68, 490,542.90 and 240,588.20 is: 332,105.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,365.68 : 490,542.90 = 240,588.20 : x
  2. Step 2: Convert to fraction form
    355,365.68/490,542.90 = 240,588.20/x
  3. Step 3: Cross multiply
    355,365.68x = 490,542.90 × 240,588.20
  4. Step 4: Simplify right side
    355,365.68x = 118,018,833,333.78
  5. Step 5: Solve for x
    x = 118,018,833,333.78/355,365.68
  6. Step 6: Final answer
    x = 332,105.32

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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.