Home / 311,863.46-430,371.29-168,623.19

Finding the Fourth Proportional to 311,863.46, 430,371.29 and 168,623.19

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Solution

The fourth proportional to 311,863.46, 430,371.29 and 168,623.19 is: 232,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,863.46 : 430,371.29 = 168,623.19 : x
  2. Step 2: Convert to fraction form
    311,863.46/430,371.29 = 168,623.19/x
  3. Step 3: Cross multiply
    311,863.46x = 430,371.29 × 168,623.19
  4. Step 4: Simplify right side
    311,863.46x = 72,570,580,225.77
  5. Step 5: Solve for x
    x = 72,570,580,225.77/311,863.46
  6. Step 6: Final answer
    x = 232,699.85

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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.