Home / 311,821.92-430,314.29-168,581.93

Finding the Fourth Proportional to 311,821.92, 430,314.29 and 168,581.93

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Solution

The fourth proportional to 311,821.92, 430,314.29 and 168,581.93 is: 232,643.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,821.92 : 430,314.29 = 168,581.93 : x
  2. Step 2: Convert to fraction form
    311,821.92/430,314.29 = 168,581.93/x
  3. Step 3: Cross multiply
    311,821.92x = 430,314.29 × 168,581.93
  4. Step 4: Simplify right side
    311,821.92x = 72,543,210,520.30
  5. Step 5: Solve for x
    x = 72,543,210,520.30/311,821.92
  6. Step 6: Final answer
    x = 232,643.08

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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.