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Finding the Fourth Proportional to 360,238.21, 540,368.24 and 123,577.47

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Solution

The fourth proportional to 360,238.21, 540,368.24 and 123,577.47 is: 185,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,238.21 : 540,368.24 = 123,577.47 : x
  2. Step 2: Convert to fraction form
    360,238.21/540,368.24 = 123,577.47/x
  3. Step 3: Cross multiply
    360,238.21x = 540,368.24 × 123,577.47
  4. Step 4: Simplify right side
    360,238.21x = 66,777,339,967.55
  5. Step 5: Solve for x
    x = 66,777,339,967.55/360,238.21
  6. Step 6: Final answer
    x = 185,369.95

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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.