Home / 282,355.13-389,656.37-155,031.23

Finding the Fourth Proportional to 282,355.13, 389,656.37 and 155,031.23

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Solution

The fourth proportional to 282,355.13, 389,656.37 and 155,031.23 is: 213,946.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,355.13 : 389,656.37 = 155,031.23 : x
  2. Step 2: Convert to fraction form
    282,355.13/389,656.37 = 155,031.23/x
  3. Step 3: Cross multiply
    282,355.13x = 389,656.37 × 155,031.23
  4. Step 4: Simplify right side
    282,355.13x = 60,408,906,318.44
  5. Step 5: Solve for x
    x = 60,408,906,318.44/282,355.13
  6. Step 6: Final answer
    x = 213,946.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.