Home / 278,878.79-384,812.66-164,089.19

Finding the Fourth Proportional to 278,878.79, 384,812.66 and 164,089.19

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Solution

The fourth proportional to 278,878.79, 384,812.66 and 164,089.19 is: 226,419.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,878.79 : 384,812.66 = 164,089.19 : x
  2. Step 2: Convert to fraction form
    278,878.79/384,812.66 = 164,089.19/x
  3. Step 3: Cross multiply
    278,878.79x = 384,812.66 × 164,089.19
  4. Step 4: Simplify right side
    278,878.79x = 63,143,594,936.64
  5. Step 5: Solve for x
    x = 63,143,594,936.64/278,878.79
  6. Step 6: Final answer
    x = 226,419.50

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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.