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Finding the Fourth Proportional to 385,773.35, 578,448.61 and 119,459.93

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Solution

The fourth proportional to 385,773.35, 578,448.61 and 119,459.93 is: 179,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,773.35 : 578,448.61 = 119,459.93 : x
  2. Step 2: Convert to fraction form
    385,773.35/578,448.61 = 119,459.93/x
  3. Step 3: Cross multiply
    385,773.35x = 578,448.61 × 119,459.93
  4. Step 4: Simplify right side
    385,773.35x = 69,101,427,268.30
  5. Step 5: Solve for x
    x = 69,101,427,268.30/385,773.35
  6. Step 6: Final answer
    x = 179,124.42

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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.