Home / 250,280.45-345,395.64-137,103.20

Finding the Fourth Proportional to 250,280.45, 345,395.64 and 137,103.20

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Solution

The fourth proportional to 250,280.45, 345,395.64 and 137,103.20 is: 189,207.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,280.45 : 345,395.64 = 137,103.20 : x
  2. Step 2: Convert to fraction form
    250,280.45/345,395.64 = 137,103.20/x
  3. Step 3: Cross multiply
    250,280.45x = 345,395.64 × 137,103.20
  4. Step 4: Simplify right side
    250,280.45x = 47,354,845,783.07
  5. Step 5: Solve for x
    x = 47,354,845,783.07/250,280.45
  6. Step 6: Final answer
    x = 189,207.13

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1.5x scale

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.