Home / 315,118.52-434,869.42-171,883.70

Finding the Fourth Proportional to 315,118.52, 434,869.42 and 171,883.70

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Solution

The fourth proportional to 315,118.52, 434,869.42 and 171,883.70 is: 237,202.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,118.52 : 434,869.42 = 171,883.70 : x
  2. Step 2: Convert to fraction form
    315,118.52/434,869.42 = 171,883.70/x
  3. Step 3: Cross multiply
    315,118.52x = 434,869.42 × 171,883.70
  4. Step 4: Simplify right side
    315,118.52x = 74,746,964,926.45
  5. Step 5: Solve for x
    x = 74,746,964,926.45/315,118.52
  6. Step 6: Final answer
    x = 237,202.70

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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.