Home / 286,534.28-395,430.72-159,212

Finding the Fourth Proportional to 286,534.28, 395,430.72 and 159,212

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Solution

The fourth proportional to 286,534.28, 395,430.72 and 159,212 is: 219,720.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,534.28 : 395,430.72 = 159,212 : x
  2. Step 2: Convert to fraction form
    286,534.28/395,430.72 = 159,212/x
  3. Step 3: Cross multiply
    286,534.28x = 395,430.72 × 159,212
  4. Step 4: Simplify right side
    286,534.28x = 62,957,315,792.64
  5. Step 5: Solve for x
    x = 62,957,315,792.64/286,534.28
  6. Step 6: Final answer
    x = 219,720.01

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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.