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Finding the Fourth Proportional to 295,509.60, 442,810.80 and 220,276.80

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Solution

The fourth proportional to 295,509.60, 442,810.80 and 220,276.80 is: 330,077.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,509.60 : 442,810.80 = 220,276.80 : x
  2. Step 2: Convert to fraction form
    295,509.60/442,810.80 = 220,276.80/x
  3. Step 3: Cross multiply
    295,509.60x = 442,810.80 × 220,276.80
  4. Step 4: Simplify right side
    295,509.60x = 97,540,946,029.44
  5. Step 5: Solve for x
    x = 97,540,946,029.44/295,509.60
  6. Step 6: Final answer
    x = 330,077.08

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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.