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Finding the Fourth Proportional to 300,001.70, 450,002.55 and 173,857.70

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Solution

The fourth proportional to 300,001.70, 450,002.55 and 173,857.70 is: 260,786.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,001.70 : 450,002.55 = 173,857.70 : x
  2. Step 2: Convert to fraction form
    300,001.70/450,002.55 = 173,857.70/x
  3. Step 3: Cross multiply
    300,001.70x = 450,002.55 × 173,857.70
  4. Step 4: Simplify right side
    300,001.70x = 78,236,408,337.14
  5. Step 5: Solve for x
    x = 78,236,408,337.14/300,001.70
  6. Step 6: Final answer
    x = 260,786.55

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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.