Home / 216,951.03-299,422.32-130,914.45

Finding the Fourth Proportional to 216,951.03, 299,422.32 and 130,914.45

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Solution

The fourth proportional to 216,951.03, 299,422.32 and 130,914.45 is: 180,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,951.03 : 299,422.32 = 130,914.45 : x
  2. Step 2: Convert to fraction form
    216,951.03/299,422.32 = 130,914.45/x
  3. Step 3: Cross multiply
    216,951.03x = 299,422.32 × 130,914.45
  4. Step 4: Simplify right side
    216,951.03x = 39,198,708,340.52
  5. Step 5: Solve for x
    x = 39,198,708,340.52/216,951.03
  6. Step 6: Final answer
    x = 180,679.98

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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.