Home / 286,009.48-394,692-156,950.12

Finding the Fourth Proportional to 286,009.48, 394,692 and 156,950.12

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Solution

The fourth proportional to 286,009.48, 394,692 and 156,950.12 is: 216,590.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,009.48 : 394,692 = 156,950.12 : x
  2. Step 2: Convert to fraction form
    286,009.48/394,692 = 156,950.12/x
  3. Step 3: Cross multiply
    286,009.48x = 394,692 × 156,950.12
  4. Step 4: Simplify right side
    286,009.48x = 61,946,956,763.04
  5. Step 5: Solve for x
    x = 61,946,956,763.04/286,009.48
  6. Step 6: Final answer
    x = 216,590.57

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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.