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Finding the Fourth Proportional to 661,325.20, 992,026.20 and 188,045.20

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Solution

The fourth proportional to 661,325.20, 992,026.20 and 188,045.20 is: 282,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,325.20 : 992,026.20 = 188,045.20 : x
  2. Step 2: Convert to fraction form
    661,325.20/992,026.20 = 188,045.20/x
  3. Step 3: Cross multiply
    661,325.20x = 992,026.20 × 188,045.20
  4. Step 4: Simplify right side
    661,325.20x = 186,545,765,184.24
  5. Step 5: Solve for x
    x = 186,545,765,184.24/661,325.20
  6. Step 6: Final answer
    x = 282,078.72

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1.5x scale

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.