Home / 259,746.90-389,729.70-141,503.10

Finding the Fourth Proportional to 259,746.90, 389,729.70 and 141,503.10

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Solution

The fourth proportional to 259,746.90, 389,729.70 and 141,503.10 is: 212,314.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,746.90 : 389,729.70 = 141,503.10 : x
  2. Step 2: Convert to fraction form
    259,746.90/389,729.70 = 141,503.10/x
  3. Step 3: Cross multiply
    259,746.90x = 389,729.70 × 141,503.10
  4. Step 4: Simplify right side
    259,746.90x = 55,147,960,712.07
  5. Step 5: Solve for x
    x = 55,147,960,712.07/259,746.90
  6. Step 6: Final answer
    x = 212,314.22

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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.