Home / 253,055.13-379,287.44-140,681.60

Finding the Fourth Proportional to 253,055.13, 379,287.44 and 140,681.60

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Solution

The fourth proportional to 253,055.13, 379,287.44 and 140,681.60 is: 210,858.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,055.13 : 379,287.44 = 140,681.60 : x
  2. Step 2: Convert to fraction form
    253,055.13/379,287.44 = 140,681.60/x
  3. Step 3: Cross multiply
    253,055.13x = 379,287.44 × 140,681.60
  4. Step 4: Simplify right side
    253,055.13x = 53,358,763,919.10
  5. Step 5: Solve for x
    x = 53,358,763,919.10/253,055.13
  6. Step 6: Final answer
    x = 210,858.26

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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.