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Finding the Fourth Proportional to 315,119.52, 434,870.80 and 171,884.70

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Solution

The fourth proportional to 315,119.52, 434,870.80 and 171,884.70 is: 237,204.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,119.52 : 434,870.80 = 171,884.70 : x
  2. Step 2: Convert to fraction form
    315,119.52/434,870.80 = 171,884.70/x
  3. Step 3: Cross multiply
    315,119.52x = 434,870.80 × 171,884.70
  4. Step 4: Simplify right side
    315,119.52x = 74,747,636,996.76
  5. Step 5: Solve for x
    x = 74,747,636,996.76/315,119.52
  6. Step 6: Final answer
    x = 237,204.08

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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.