Home / 340,218.05-469,500.36-211,108.50

Finding the Fourth Proportional to 340,218.05, 469,500.36 and 211,108.50

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Solution

The fourth proportional to 340,218.05, 469,500.36 and 211,108.50 is: 291,329.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,218.05 : 469,500.36 = 211,108.50 : x
  2. Step 2: Convert to fraction form
    340,218.05/469,500.36 = 211,108.50/x
  3. Step 3: Cross multiply
    340,218.05x = 469,500.36 × 211,108.50
  4. Step 4: Simplify right side
    340,218.05x = 99,115,516,749.06
  5. Step 5: Solve for x
    x = 99,115,516,749.06/340,218.05
  6. Step 6: Final answer
    x = 291,329.39

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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.