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Finding the Fourth Proportional to 369,662.10, 554,740.84 and 129,776.72

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Solution

The fourth proportional to 369,662.10, 554,740.84 and 129,776.72 is: 194,752.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,662.10 : 554,740.84 = 129,776.72 : x
  2. Step 2: Convert to fraction form
    369,662.10/554,740.84 = 129,776.72/x
  3. Step 3: Cross multiply
    369,662.10x = 554,740.84 × 129,776.72
  4. Step 4: Simplify right side
    369,662.10x = 71,992,444,260.52
  5. Step 5: Solve for x
    x = 71,992,444,260.52/369,662.10
  6. Step 6: Final answer
    x = 194,752.03

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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.