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Finding the Fourth Proportional to 661,477.28, 992,209.44 and 188,100.32

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Solution

The fourth proportional to 661,477.28, 992,209.44 and 188,100.32 is: 282,148.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,477.28 : 992,209.44 = 188,100.32 : x
  2. Step 2: Convert to fraction form
    661,477.28/992,209.44 = 188,100.32/x
  3. Step 3: Cross multiply
    661,477.28x = 992,209.44 × 188,100.32
  4. Step 4: Simplify right side
    661,477.28x = 186,634,913,171.02
  5. Step 5: Solve for x
    x = 186,634,913,171.02/661,477.28
  6. Step 6: Final answer
    x = 282,148.64

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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.