Home / 397,564.20-548,642.16-216,280.08

Finding the Fourth Proportional to 397,564.20, 548,642.16 and 216,280.08

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Solution

The fourth proportional to 397,564.20, 548,642.16 and 216,280.08 is: 298,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,564.20 : 548,642.16 = 216,280.08 : x
  2. Step 2: Convert to fraction form
    397,564.20/548,642.16 = 216,280.08/x
  3. Step 3: Cross multiply
    397,564.20x = 548,642.16 × 216,280.08
  4. Step 4: Simplify right side
    397,564.20x = 118,660,370,256.17
  5. Step 5: Solve for x
    x = 118,660,370,256.17/397,564.20
  6. Step 6: Final answer
    x = 298,468.45

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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.