Home / 448,221.90-671,567.40-211,078.20

Finding the Fourth Proportional to 448,221.90, 671,567.40 and 211,078.20

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Solution

The fourth proportional to 448,221.90, 671,567.40 and 211,078.20 is: 316,256.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,221.90 : 671,567.40 = 211,078.20 : x
  2. Step 2: Convert to fraction form
    448,221.90/671,567.40 = 211,078.20/x
  3. Step 3: Cross multiply
    448,221.90x = 671,567.40 × 211,078.20
  4. Step 4: Simplify right side
    448,221.90x = 141,753,237,970.68
  5. Step 5: Solve for x
    x = 141,753,237,970.68/448,221.90
  6. Step 6: Final answer
    x = 316,256.83

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1.5x scale

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.