Home / 311,829.90-430,326.32-168,590.97

Finding the Fourth Proportional to 311,829.90, 430,326.32 and 168,590.97

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Solution

The fourth proportional to 311,829.90, 430,326.32 and 168,590.97 is: 232,656.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,829.90 : 430,326.32 = 168,590.97 : x
  2. Step 2: Convert to fraction form
    311,829.90/430,326.32 = 168,590.97/x
  3. Step 3: Cross multiply
    311,829.90x = 430,326.32 × 168,590.97
  4. Step 4: Simplify right side
    311,829.90x = 72,549,131,705.33
  5. Step 5: Solve for x
    x = 72,549,131,705.33/311,829.90
  6. Step 6: Final answer
    x = 232,656.11

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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.