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Finding the Fourth Proportional to 255,371.73, 383,056.55 and 77,878.22

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Solution

The fourth proportional to 255,371.73, 383,056.55 and 77,878.22 is: 116,817.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,371.73 : 383,056.55 = 77,878.22 : x
  2. Step 2: Convert to fraction form
    255,371.73/383,056.55 = 77,878.22/x
  3. Step 3: Cross multiply
    255,371.73x = 383,056.55 × 77,878.22
  4. Step 4: Simplify right side
    255,371.73x = 29,831,762,273.34
  5. Step 5: Solve for x
    x = 29,831,762,273.34/255,371.73
  6. Step 6: Final answer
    x = 116,817.01

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1.5x scale

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.