Home / 285,787.48-427,840.35-190,782.04

Finding the Fourth Proportional to 285,787.48, 427,840.35 and 190,782.04

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Solution

The fourth proportional to 285,787.48, 427,840.35 and 190,782.04 is: 285,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,787.48 : 427,840.35 = 190,782.04 : x
  2. Step 2: Convert to fraction form
    285,787.48/427,840.35 = 190,782.04/x
  3. Step 3: Cross multiply
    285,787.48x = 427,840.35 × 190,782.04
  4. Step 4: Simplify right side
    285,787.48x = 81,624,254,767.31
  5. Step 5: Solve for x
    x = 81,624,254,767.31/285,787.48
  6. Step 6: Final answer
    x = 285,611.72

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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.