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Finding the Fourth Proportional to 213,525.60, 320,142.60 and 101,259.60

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Solution

The fourth proportional to 213,525.60, 320,142.60 and 101,259.60 is: 151,820.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,525.60 : 320,142.60 = 101,259.60 : x
  2. Step 2: Convert to fraction form
    213,525.60/320,142.60 = 101,259.60/x
  3. Step 3: Cross multiply
    213,525.60x = 320,142.60 × 101,259.60
  4. Step 4: Simplify right side
    213,525.60x = 32,417,511,618.96
  5. Step 5: Solve for x
    x = 32,417,511,618.96/213,525.60
  6. Step 6: Final answer
    x = 151,820.26

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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.