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Finding the Fourth Proportional to 303,395.40, 454,655.70 and 134,777.70

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Solution

The fourth proportional to 303,395.40, 454,655.70 and 134,777.70 is: 201,972.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,395.40 : 454,655.70 = 134,777.70 : x
  2. Step 2: Convert to fraction form
    303,395.40/454,655.70 = 134,777.70/x
  3. Step 3: Cross multiply
    303,395.40x = 454,655.70 × 134,777.70
  4. Step 4: Simplify right side
    303,395.40x = 61,277,449,537.89
  5. Step 5: Solve for x
    x = 61,277,449,537.89/303,395.40
  6. Step 6: Final answer
    x = 201,972.24

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1.5x scale

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.