Home / 311,828.15-430,323.90-168,589.22

Finding the Fourth Proportional to 311,828.15, 430,323.90 and 168,589.22

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Solution

The fourth proportional to 311,828.15, 430,323.90 and 168,589.22 is: 232,653.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,828.15 : 430,323.90 = 168,589.22 : x
  2. Step 2: Convert to fraction form
    311,828.15/430,323.90 = 168,589.22/x
  3. Step 3: Cross multiply
    311,828.15x = 430,323.90 × 168,589.22
  4. Step 4: Simplify right side
    311,828.15x = 72,547,967,864.53
  5. Step 5: Solve for x
    x = 72,547,967,864.53/311,828.15
  6. Step 6: Final answer
    x = 232,653.68

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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.