Home / 240,302.09-331,625.75-155,419.16

Finding the Fourth Proportional to 240,302.09, 331,625.75 and 155,419.16

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Solution

The fourth proportional to 240,302.09, 331,625.75 and 155,419.16 is: 214,484.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,302.09 : 331,625.75 = 155,419.16 : x
  2. Step 2: Convert to fraction form
    240,302.09/331,625.75 = 155,419.16/x
  3. Step 3: Cross multiply
    240,302.09x = 331,625.75 × 155,419.16
  4. Step 4: Simplify right side
    240,302.09x = 51,540,993,064.15
  5. Step 5: Solve for x
    x = 51,540,993,064.15/240,302.09
  6. Step 6: Final answer
    x = 214,484.16

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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.