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Finding the Fourth Proportional to 303,401.40, 454,664.70 and 134,783.70

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Solution

The fourth proportional to 303,401.40, 454,664.70 and 134,783.70 is: 201,981.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,401.40 : 454,664.70 = 134,783.70 : x
  2. Step 2: Convert to fraction form
    303,401.40/454,664.70 = 134,783.70/x
  3. Step 3: Cross multiply
    303,401.40x = 454,664.70 × 134,783.70
  4. Step 4: Simplify right side
    303,401.40x = 61,281,390,525.39
  5. Step 5: Solve for x
    x = 61,281,390,525.39/303,401.40
  6. Step 6: Final answer
    x = 201,981.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.