Home / 315,158.39-434,918.04-171,918.43

Finding the Fourth Proportional to 315,158.39, 434,918.04 and 171,918.43

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Solution

The fourth proportional to 315,158.39, 434,918.04 and 171,918.43 is: 237,247.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,158.39 : 434,918.04 = 171,918.43 : x
  2. Step 2: Convert to fraction form
    315,158.39/434,918.04 = 171,918.43/x
  3. Step 3: Cross multiply
    315,158.39x = 434,918.04 × 171,918.43
  4. Step 4: Simplify right side
    315,158.39x = 74,770,426,615.48
  5. Step 5: Solve for x
    x = 74,770,426,615.48/315,158.39
  6. Step 6: Final answer
    x = 237,247.14

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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.