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Finding the Fourth Proportional to 295,510.60, 442,812.30 and 220,277.80

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Solution

The fourth proportional to 295,510.60, 442,812.30 and 220,277.80 is: 330,078.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,510.60 : 442,812.30 = 220,277.80 : x
  2. Step 2: Convert to fraction form
    295,510.60/442,812.30 = 220,277.80/x
  3. Step 3: Cross multiply
    295,510.60x = 442,812.30 × 220,277.80
  4. Step 4: Simplify right side
    295,510.60x = 97,541,719,256.94
  5. Step 5: Solve for x
    x = 97,541,719,256.94/295,510.60
  6. Step 6: Final answer
    x = 330,078.58

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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.