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Finding the Fourth Proportional to 272,055.60, 407,791.80 and 103,510.80

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Solution

The fourth proportional to 272,055.60, 407,791.80 and 103,510.80 is: 155,155.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,055.60 : 407,791.80 = 103,510.80 : x
  2. Step 2: Convert to fraction form
    272,055.60/407,791.80 = 103,510.80/x
  3. Step 3: Cross multiply
    272,055.60x = 407,791.80 × 103,510.80
  4. Step 4: Simplify right side
    272,055.60x = 42,210,855,451.44
  5. Step 5: Solve for x
    x = 42,210,855,451.44/272,055.60
  6. Step 6: Final answer
    x = 155,155.25

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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.