Home / 315,158.89-434,918.73-171,918.93

Finding the Fourth Proportional to 315,158.89, 434,918.73 and 171,918.93

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Solution

The fourth proportional to 315,158.89, 434,918.73 and 171,918.93 is: 237,247.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,158.89 : 434,918.73 = 171,918.93 : x
  2. Step 2: Convert to fraction form
    315,158.89/434,918.73 = 171,918.93/x
  3. Step 3: Cross multiply
    315,158.89x = 434,918.73 × 171,918.93
  4. Step 4: Simplify right side
    315,158.89x = 74,770,762,698.56
  5. Step 5: Solve for x
    x = 74,770,762,698.56/315,158.89
  6. Step 6: Final answer
    x = 237,247.83

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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.