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Finding the Fourth Proportional to 293,132.40, 439,698.60 and 258,111.60

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Solution

The fourth proportional to 293,132.40, 439,698.60 and 258,111.60 is: 387,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,132.40 : 439,698.60 = 258,111.60 : x
  2. Step 2: Convert to fraction form
    293,132.40/439,698.60 = 258,111.60/x
  3. Step 3: Cross multiply
    293,132.40x = 439,698.60 × 258,111.60
  4. Step 4: Simplify right side
    293,132.40x = 113,491,309,163.76
  5. Step 5: Solve for x
    x = 113,491,309,163.76/293,132.40
  6. Step 6: Final answer
    x = 387,167.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.