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Finding the Fourth Proportional to 575,287.15, 863,055.30 and 220,301.18

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Solution

The fourth proportional to 575,287.15, 863,055.30 and 220,301.18 is: 330,499.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,287.15 : 863,055.30 = 220,301.18 : x
  2. Step 2: Convert to fraction form
    575,287.15/863,055.30 = 220,301.18/x
  3. Step 3: Cross multiply
    575,287.15x = 863,055.30 × 220,301.18
  4. Step 4: Simplify right side
    575,287.15x = 190,132,100,995.25
  5. Step 5: Solve for x
    x = 190,132,100,995.25/575,287.15
  6. Step 6: Final answer
    x = 330,499.47

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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.