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Finding the Fourth Proportional to 340,055.60, 510,277.80 and 129,844.40

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Solution

The fourth proportional to 340,055.60, 510,277.80 and 129,844.40 is: 194,840.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,055.60 : 510,277.80 = 129,844.40 : x
  2. Step 2: Convert to fraction form
    340,055.60/510,277.80 = 129,844.40/x
  3. Step 3: Cross multiply
    340,055.60x = 510,277.80 × 129,844.40
  4. Step 4: Simplify right side
    340,055.60x = 66,256,714,774.32
  5. Step 5: Solve for x
    x = 66,256,714,774.32/340,055.60
  6. Step 6: Final answer
    x = 194,840.83

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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.