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Finding the Fourth Proportional to 370,285.82, 555,054.71 and 145,803.77

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Solution

The fourth proportional to 370,285.82, 555,054.71 and 145,803.77 is: 218,558.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,285.82 : 555,054.71 = 145,803.77 : x
  2. Step 2: Convert to fraction form
    370,285.82/555,054.71 = 145,803.77/x
  3. Step 3: Cross multiply
    370,285.82x = 555,054.71 × 145,803.77
  4. Step 4: Simplify right side
    370,285.82x = 80,929,069,274.26
  5. Step 5: Solve for x
    x = 80,929,069,274.26/370,285.82
  6. Step 6: Final answer
    x = 218,558.38

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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.