Home / 435,354.15-653,083.14-210,553.05

Finding the Fourth Proportional to 435,354.15, 653,083.14 and 210,553.05

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Solution

The fourth proportional to 435,354.15, 653,083.14 and 210,553.05 is: 315,854.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,354.15 : 653,083.14 = 210,553.05 : x
  2. Step 2: Convert to fraction form
    435,354.15/653,083.14 = 210,553.05/x
  3. Step 3: Cross multiply
    435,354.15x = 653,083.14 × 210,553.05
  4. Step 4: Simplify right side
    435,354.15x = 137,508,647,030.58
  5. Step 5: Solve for x
    x = 137,508,647,030.58/435,354.15
  6. Step 6: Final answer
    x = 315,854.68

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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.