Home / 448,137.90-671,841.68-208,403.06

Finding the Fourth Proportional to 448,137.90, 671,841.68 and 208,403.06

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Solution

The fourth proportional to 448,137.90, 671,841.68 and 208,403.06 is: 312,434.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,137.90 : 671,841.68 = 208,403.06 : x
  2. Step 2: Convert to fraction form
    448,137.90/671,841.68 = 208,403.06/x
  3. Step 3: Cross multiply
    448,137.90x = 671,841.68 × 208,403.06
  4. Step 4: Simplify right side
    448,137.90x = 140,013,857,546.32
  5. Step 5: Solve for x
    x = 140,013,857,546.32/448,137.90
  6. Step 6: Final answer
    x = 312,434.76

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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.