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Finding the Fourth Proportional to 370,651.49, 555,766.51 and 145,890.09

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Solution

The fourth proportional to 370,651.49, 555,766.51 and 145,890.09 is: 218,752.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,651.49 : 555,766.51 = 145,890.09 : x
  2. Step 2: Convert to fraction form
    370,651.49/555,766.51 = 145,890.09/x
  3. Step 3: Cross multiply
    370,651.49x = 555,766.51 × 145,890.09
  4. Step 4: Simplify right side
    370,651.49x = 81,080,825,798.16
  5. Step 5: Solve for x
    x = 81,080,825,798.16/370,651.49
  6. Step 6: Final answer
    x = 218,752.19

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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.