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Finding the Fourth Proportional to 300,515.70, 450,701.55 and 173,882.10

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Solution

The fourth proportional to 300,515.70, 450,701.55 and 173,882.10 is: 260,781.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,515.70 : 450,701.55 = 173,882.10 : x
  2. Step 2: Convert to fraction form
    300,515.70/450,701.55 = 173,882.10/x
  3. Step 3: Cross multiply
    300,515.70x = 450,701.55 × 173,882.10
  4. Step 4: Simplify right side
    300,515.70x = 78,368,931,987.26
  5. Step 5: Solve for x
    x = 78,368,931,987.26/300,515.70
  6. Step 6: Final answer
    x = 260,781.49

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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.