Home / 397,498.40-548,560.08-216,223.52

Finding the Fourth Proportional to 397,498.40, 548,560.08 and 216,223.52

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Solution

The fourth proportional to 397,498.40, 548,560.08 and 216,223.52 is: 298,395.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,498.40 : 548,560.08 = 216,223.52 : x
  2. Step 2: Convert to fraction form
    397,498.40/548,560.08 = 216,223.52/x
  3. Step 3: Cross multiply
    397,498.40x = 548,560.08 × 216,223.52
  4. Step 4: Simplify right side
    397,498.40x = 118,611,591,429.08
  5. Step 5: Solve for x
    x = 118,611,591,429.08/397,498.40
  6. Step 6: Final answer
    x = 298,395.14

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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.