Home / 315,057.72-434,766.54-171,815.16

Finding the Fourth Proportional to 315,057.72, 434,766.54 and 171,815.16

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Solution

The fourth proportional to 315,057.72, 434,766.54 and 171,815.16 is: 237,097.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,057.72 : 434,766.54 = 171,815.16 : x
  2. Step 2: Convert to fraction form
    315,057.72/434,766.54 = 171,815.16/x
  3. Step 3: Cross multiply
    315,057.72x = 434,766.54 × 171,815.16
  4. Step 4: Simplify right side
    315,057.72x = 74,699,482,632.75
  5. Step 5: Solve for x
    x = 74,699,482,632.75/315,057.72
  6. Step 6: Final answer
    x = 237,097.77

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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.