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Finding the Fourth Proportional to 372,687.12, 514,462.74 and 282,068.37

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Solution

The fourth proportional to 372,687.12, 514,462.74 and 282,068.37 is: 389,371.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,687.12 : 514,462.74 = 282,068.37 : x
  2. Step 2: Convert to fraction form
    372,687.12/514,462.74 = 282,068.37/x
  3. Step 3: Cross multiply
    372,687.12x = 514,462.74 × 282,068.37
  4. Step 4: Simplify right side
    372,687.12x = 145,113,666,497.53
  5. Step 5: Solve for x
    x = 145,113,666,497.53/372,687.12
  6. Step 6: Final answer
    x = 389,371.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.