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Finding the Fourth Proportional to 395,330.88, 545,551.20 and 216,482.88

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Solution

The fourth proportional to 395,330.88, 545,551.20 and 216,482.88 is: 298,743.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,330.88 : 545,551.20 = 216,482.88 : x
  2. Step 2: Convert to fraction form
    395,330.88/545,551.20 = 216,482.88/x
  3. Step 3: Cross multiply
    395,330.88x = 545,551.20 × 216,482.88
  4. Step 4: Simplify right side
    395,330.88x = 118,102,494,963.46
  5. Step 5: Solve for x
    x = 118,102,494,963.46/395,330.88
  6. Step 6: Final answer
    x = 298,743.41

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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.