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Finding the Fourth Proportional to 313,740.28, 432,960.39 and 177,800.14

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Solution

The fourth proportional to 313,740.28, 432,960.39 and 177,800.14 is: 245,363.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,740.28 : 432,960.39 = 177,800.14 : x
  2. Step 2: Convert to fraction form
    313,740.28/432,960.39 = 177,800.14/x
  3. Step 3: Cross multiply
    313,740.28x = 432,960.39 × 177,800.14
  4. Step 4: Simplify right side
    313,740.28x = 76,980,417,956.45
  5. Step 5: Solve for x
    x = 76,980,417,956.45/313,740.28
  6. Step 6: Final answer
    x = 245,363.52

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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.