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Finding the Fourth Proportional to 293,024.80, 439,537.20 and 143,288.20

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Solution

The fourth proportional to 293,024.80, 439,537.20 and 143,288.20 is: 214,932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,024.80 : 439,537.20 = 143,288.20 : x
  2. Step 2: Convert to fraction form
    293,024.80/439,537.20 = 143,288.20/x
  3. Step 3: Cross multiply
    293,024.80x = 439,537.20 × 143,288.20
  4. Step 4: Simplify right side
    293,024.80x = 62,980,494,221.04
  5. Step 5: Solve for x
    x = 62,980,494,221.04/293,024.80
  6. Step 6: Final answer
    x = 214,932.30

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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.