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Finding the Fourth Proportional to 302,369.20, 453,601.80 and 102,708.40

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Solution

The fourth proportional to 302,369.20, 453,601.80 and 102,708.40 is: 154,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,369.20 : 453,601.80 = 102,708.40 : x
  2. Step 2: Convert to fraction form
    302,369.20/453,601.80 = 102,708.40/x
  3. Step 3: Cross multiply
    302,369.20x = 453,601.80 × 102,708.40
  4. Step 4: Simplify right side
    302,369.20x = 46,588,715,115.12
  5. Step 5: Solve for x
    x = 46,588,715,115.12/302,369.20
  6. Step 6: Final answer
    x = 154,078.90

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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.