Home / 448,215.70-672,322.16-140,491.12

Finding the Fourth Proportional to 448,215.70, 672,322.16 and 140,491.12

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Solution

The fourth proportional to 448,215.70, 672,322.16 and 140,491.12 is: 210,736.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,215.70 : 672,322.16 = 140,491.12 : x
  2. Step 2: Convert to fraction form
    448,215.70/672,322.16 = 140,491.12/x
  3. Step 3: Cross multiply
    448,215.70x = 672,322.16 × 140,491.12
  4. Step 4: Simplify right side
    448,215.70x = 94,455,293,259.22
  5. Step 5: Solve for x
    x = 94,455,293,259.22/448,215.70
  6. Step 6: Final answer
    x = 210,736.24

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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.