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Finding the Fourth Proportional to 374,779.71, 517,231.62 and 205,039.35

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Solution

The fourth proportional to 374,779.71, 517,231.62 and 205,039.35 is: 282,973.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,779.71 : 517,231.62 = 205,039.35 : x
  2. Step 2: Convert to fraction form
    374,779.71/517,231.62 = 205,039.35/x
  3. Step 3: Cross multiply
    374,779.71x = 517,231.62 × 205,039.35
  4. Step 4: Simplify right side
    374,779.71x = 106,052,835,164.25
  5. Step 5: Solve for x
    x = 106,052,835,164.25/374,779.71
  6. Step 6: Final answer
    x = 282,973.79

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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.