Home / 287,716.07-431,183.54-152,746.04

Finding the Fourth Proportional to 287,716.07, 431,183.54 and 152,746.04

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Solution

The fourth proportional to 287,716.07, 431,183.54 and 152,746.04 is: 228,911.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,716.07 : 431,183.54 = 152,746.04 : x
  2. Step 2: Convert to fraction form
    287,716.07/431,183.54 = 152,746.04/x
  3. Step 3: Cross multiply
    287,716.07x = 431,183.54 × 152,746.04
  4. Step 4: Simplify right side
    287,716.07x = 65,861,575,328.53
  5. Step 5: Solve for x
    x = 65,861,575,328.53/287,716.07
  6. Step 6: Final answer
    x = 228,911.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.