Home / 286,265.86-395,039.37-158,938.18

Finding the Fourth Proportional to 286,265.86, 395,039.37 and 158,938.18

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Solution

The fourth proportional to 286,265.86, 395,039.37 and 158,938.18 is: 219,330.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,265.86 : 395,039.37 = 158,938.18 : x
  2. Step 2: Convert to fraction form
    286,265.86/395,039.37 = 158,938.18/x
  3. Step 3: Cross multiply
    286,265.86x = 395,039.37 × 158,938.18
  4. Step 4: Simplify right side
    286,265.86x = 62,786,838,496.15
  5. Step 5: Solve for x
    x = 62,786,838,496.15/286,265.86
  6. Step 6: Final answer
    x = 219,330.51

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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.