Home / 448,214.10-672,321.15-212,018.10

Finding the Fourth Proportional to 448,214.10, 672,321.15 and 212,018.10

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Solution

The fourth proportional to 448,214.10, 672,321.15 and 212,018.10 is: 318,027.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,214.10 : 672,321.15 = 212,018.10 : x
  2. Step 2: Convert to fraction form
    448,214.10/672,321.15 = 212,018.10/x
  3. Step 3: Cross multiply
    448,214.10x = 672,321.15 × 212,018.10
  4. Step 4: Simplify right side
    448,214.10x = 142,544,252,812.82
  5. Step 5: Solve for x
    x = 142,544,252,812.82/448,214.10
  6. Step 6: Final answer
    x = 318,027.15

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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.