Home / 240,148.96-331,446.72-139,605.28

Finding the Fourth Proportional to 240,148.96, 331,446.72 and 139,605.28

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Solution

The fourth proportional to 240,148.96, 331,446.72 and 139,605.28 is: 192,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,148.96 : 331,446.72 = 139,605.28 : x
  2. Step 2: Convert to fraction form
    240,148.96/331,446.72 = 139,605.28/x
  3. Step 3: Cross multiply
    240,148.96x = 331,446.72 × 139,605.28
  4. Step 4: Simplify right side
    240,148.96x = 46,271,712,150.68
  5. Step 5: Solve for x
    x = 46,271,712,150.68/240,148.96
  6. Step 6: Final answer
    x = 192,679.21

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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.