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Finding the Fourth Proportional to 385,898.82, 578,539.09 and 183,393.28

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Solution

The fourth proportional to 385,898.82, 578,539.09 and 183,393.28 is: 274,943.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,898.82 : 578,539.09 = 183,393.28 : x
  2. Step 2: Convert to fraction form
    385,898.82/578,539.09 = 183,393.28/x
  3. Step 3: Cross multiply
    385,898.82x = 578,539.09 × 183,393.28
  4. Step 4: Simplify right side
    385,898.82x = 106,100,181,323.32
  5. Step 5: Solve for x
    x = 106,100,181,323.32/385,898.82
  6. Step 6: Final answer
    x = 274,943.01

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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.