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Finding the Fourth Proportional to 302,715.70, 454,121.55 and 103,054.90

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Solution

The fourth proportional to 302,715.70, 454,121.55 and 103,054.90 is: 154,598.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,715.70 : 454,121.55 = 103,054.90 : x
  2. Step 2: Convert to fraction form
    302,715.70/454,121.55 = 103,054.90/x
  3. Step 3: Cross multiply
    302,715.70x = 454,121.55 × 103,054.90
  4. Step 4: Simplify right side
    302,715.70x = 46,799,450,923.10
  5. Step 5: Solve for x
    x = 46,799,450,923.10/302,715.70
  6. Step 6: Final answer
    x = 154,598.69

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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.