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Finding the Fourth Proportional to 240,165.48, 331,448.58 and 139,557

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Solution

The fourth proportional to 240,165.48, 331,448.58 and 139,557 is: 192,600.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,165.48 : 331,448.58 = 139,557 : x
  2. Step 2: Convert to fraction form
    240,165.48/331,448.58 = 139,557/x
  3. Step 3: Cross multiply
    240,165.48x = 331,448.58 × 139,557
  4. Step 4: Simplify right side
    240,165.48x = 46,255,969,479.06
  5. Step 5: Solve for x
    x = 46,255,969,479.06/240,165.48
  6. Step 6: Final answer
    x = 192,600.41

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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.