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Finding the Fourth Proportional to 240,044, 331,260.72 and 139,448.48

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Solution

The fourth proportional to 240,044, 331,260.72 and 139,448.48 is: 192,438.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,044 : 331,260.72 = 139,448.48 : x
  2. Step 2: Convert to fraction form
    240,044/331,260.72 = 139,448.48/x
  3. Step 3: Cross multiply
    240,044x = 331,260.72 × 139,448.48
  4. Step 4: Simplify right side
    240,044x = 46,193,803,887.71
  5. Step 5: Solve for x
    x = 46,193,803,887.71/240,044
  6. Step 6: Final answer
    x = 192,438.90

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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.