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Finding the Fourth Proportional to 255,683.84, 383,278.08 and 97,790.72

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Solution

The fourth proportional to 255,683.84, 383,278.08 and 97,790.72 is: 146,591.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,683.84 : 383,278.08 = 97,790.72 : x
  2. Step 2: Convert to fraction form
    255,683.84/383,278.08 = 97,790.72/x
  3. Step 3: Cross multiply
    255,683.84x = 383,278.08 × 97,790.72
  4. Step 4: Simplify right side
    255,683.84x = 37,481,039,403.42
  5. Step 5: Solve for x
    x = 37,481,039,403.42/255,683.84
  6. Step 6: Final answer
    x = 146,591.35

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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.