Home / 312,131.58-430,747.11-176,192.70

Finding the Fourth Proportional to 312,131.58, 430,747.11 and 176,192.70

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Solution

The fourth proportional to 312,131.58, 430,747.11 and 176,192.70 is: 243,149.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,131.58 : 430,747.11 = 176,192.70 : x
  2. Step 2: Convert to fraction form
    312,131.58/430,747.11 = 176,192.70/x
  3. Step 3: Cross multiply
    312,131.58x = 430,747.11 × 176,192.70
  4. Step 4: Simplify right side
    312,131.58x = 75,894,496,328.10
  5. Step 5: Solve for x
    x = 75,894,496,328.10/312,131.58
  6. Step 6: Final answer
    x = 243,149.05

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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.