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Finding the Fourth Proportional to 395,663.60, 593,495.40 and 185,711.60

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Solution

The fourth proportional to 395,663.60, 593,495.40 and 185,711.60 is: 278,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,663.60 : 593,495.40 = 185,711.60 : x
  2. Step 2: Convert to fraction form
    395,663.60/593,495.40 = 185,711.60/x
  3. Step 3: Cross multiply
    395,663.60x = 593,495.40 × 185,711.60
  4. Step 4: Simplify right side
    395,663.60x = 110,218,980,326.64
  5. Step 5: Solve for x
    x = 110,218,980,326.64/395,663.60
  6. Step 6: Final answer
    x = 278,567.40

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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.