Home / 451,038.36-676,779.83-211,168.50

Finding the Fourth Proportional to 451,038.36, 676,779.83 and 211,168.50

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Solution

The fourth proportional to 451,038.36, 676,779.83 and 211,168.50 is: 316,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,038.36 : 676,779.83 = 211,168.50 : x
  2. Step 2: Convert to fraction form
    451,038.36/676,779.83 = 211,168.50/x
  3. Step 3: Cross multiply
    451,038.36x = 676,779.83 × 211,168.50
  4. Step 4: Simplify right side
    451,038.36x = 142,914,578,843.87
  5. Step 5: Solve for x
    x = 142,914,578,843.87/451,038.36
  6. Step 6: Final answer
    x = 316,856.82

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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.