Home / 280,928.98-387,787.42-184,139.07

Finding the Fourth Proportional to 280,928.98, 387,787.42 and 184,139.07

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Solution

The fourth proportional to 280,928.98, 387,787.42 and 184,139.07 is: 254,181.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,928.98 : 387,787.42 = 184,139.07 : x
  2. Step 2: Convert to fraction form
    280,928.98/387,787.42 = 184,139.07/x
  3. Step 3: Cross multiply
    280,928.98x = 387,787.42 × 184,139.07
  4. Step 4: Simplify right side
    280,928.98x = 71,406,813,955.80
  5. Step 5: Solve for x
    x = 71,406,813,955.80/280,928.98
  6. Step 6: Final answer
    x = 254,181.02

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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.