Home / 312,626.04-431,397.66-176,671.80

Finding the Fourth Proportional to 312,626.04, 431,397.66 and 176,671.80

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Solution

The fourth proportional to 312,626.04, 431,397.66 and 176,671.80 is: 243,792.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,626.04 : 431,397.66 = 176,671.80 : x
  2. Step 2: Convert to fraction form
    312,626.04/431,397.66 = 176,671.80/x
  3. Step 3: Cross multiply
    312,626.04x = 431,397.66 × 176,671.80
  4. Step 4: Simplify right side
    312,626.04x = 76,215,801,107.99
  5. Step 5: Solve for x
    x = 76,215,801,107.99/312,626.04
  6. Step 6: Final answer
    x = 243,792.24

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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.