Home / 286,659.85-395,595.33-157,603.78

Finding the Fourth Proportional to 286,659.85, 395,595.33 and 157,603.78

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Solution

The fourth proportional to 286,659.85, 395,595.33 and 157,603.78 is: 217,495.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,659.85 : 395,595.33 = 157,603.78 : x
  2. Step 2: Convert to fraction form
    286,659.85/395,595.33 = 157,603.78/x
  3. Step 3: Cross multiply
    286,659.85x = 395,595.33 × 157,603.78
  4. Step 4: Simplify right side
    286,659.85x = 62,347,319,358.35
  5. Step 5: Solve for x
    x = 62,347,319,358.35/286,659.85
  6. Step 6: Final answer
    x = 217,495.82

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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.