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Finding the Fourth Proportional to 289,887.03, 400,048.20 and 175,149.72

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Solution

The fourth proportional to 289,887.03, 400,048.20 and 175,149.72 is: 241,709.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,887.03 : 400,048.20 = 175,149.72 : x
  2. Step 2: Convert to fraction form
    289,887.03/400,048.20 = 175,149.72/x
  3. Step 3: Cross multiply
    289,887.03x = 400,048.20 × 175,149.72
  4. Step 4: Simplify right side
    289,887.03x = 70,068,330,216.50
  5. Step 5: Solve for x
    x = 70,068,330,216.50/289,887.03
  6. Step 6: Final answer
    x = 241,709.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.