Home / 312,110.85-430,714.46-176,150.53

Finding the Fourth Proportional to 312,110.85, 430,714.46 and 176,150.53

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Solution

The fourth proportional to 312,110.85, 430,714.46 and 176,150.53 is: 243,088.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,110.85 : 430,714.46 = 176,150.53 : x
  2. Step 2: Convert to fraction form
    312,110.85/430,714.46 = 176,150.53/x
  3. Step 3: Cross multiply
    312,110.85x = 430,714.46 × 176,150.53
  4. Step 4: Simplify right side
    312,110.85x = 75,870,581,386.43
  5. Step 5: Solve for x
    x = 75,870,581,386.43/312,110.85
  6. Step 6: Final answer
    x = 243,088.57

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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.