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Finding the Fourth Proportional to 255,055.60, 382,122.60 and 218,191.60

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Solution

The fourth proportional to 255,055.60, 382,122.60 and 218,191.60 is: 326,893.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,055.60 : 382,122.60 = 218,191.60 : x
  2. Step 2: Convert to fraction form
    255,055.60/382,122.60 = 218,191.60/x
  3. Step 3: Cross multiply
    255,055.60x = 382,122.60 × 218,191.60
  4. Step 4: Simplify right side
    255,055.60x = 83,375,941,490.16
  5. Step 5: Solve for x
    x = 83,375,941,490.16/255,055.60
  6. Step 6: Final answer
    x = 326,893.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.