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Finding the Fourth Proportional to 385,701.48, 578,579.76 and 119,427.84

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Solution

The fourth proportional to 385,701.48, 578,579.76 and 119,427.84 is: 179,150.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,701.48 : 578,579.76 = 119,427.84 : x
  2. Step 2: Convert to fraction form
    385,701.48/578,579.76 = 119,427.84/x
  3. Step 3: Cross multiply
    385,701.48x = 578,579.76 × 119,427.84
  4. Step 4: Simplify right side
    385,701.48x = 69,098,531,004.52
  5. Step 5: Solve for x
    x = 69,098,531,004.52/385,701.48
  6. Step 6: Final answer
    x = 179,150.29

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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.