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Finding the Fourth Proportional to 355,695.60, 534,157.80 and 189,807.60

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Solution

The fourth proportional to 355,695.60, 534,157.80 and 189,807.60 is: 285,039.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,695.60 : 534,157.80 = 189,807.60 : x
  2. Step 2: Convert to fraction form
    355,695.60/534,157.80 = 189,807.60/x
  3. Step 3: Cross multiply
    355,695.60x = 534,157.80 × 189,807.60
  4. Step 4: Simplify right side
    355,695.60x = 101,387,210,039.28
  5. Step 5: Solve for x
    x = 101,387,210,039.28/355,695.60
  6. Step 6: Final answer
    x = 285,039.26

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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.