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Finding the Fourth Proportional to 369,777.25, 554,980.61 and 145,294.66

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Solution

The fourth proportional to 369,777.25, 554,980.61 and 145,294.66 is: 218,065.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,777.25 : 554,980.61 = 145,294.66 : x
  2. Step 2: Convert to fraction form
    369,777.25/554,980.61 = 145,294.66/x
  3. Step 3: Cross multiply
    369,777.25x = 554,980.61 × 145,294.66
  4. Step 4: Simplify right side
    369,777.25x = 80,635,720,093.51
  5. Step 5: Solve for x
    x = 80,635,720,093.51/369,777.25
  6. Step 6: Final answer
    x = 218,065.66

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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.