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Finding the Fourth Proportional to 255,813.90, 383,502.02 and 98,155.50

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Solution

The fourth proportional to 255,813.90, 383,502.02 and 98,155.50 is: 147,149.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,813.90 : 383,502.02 = 98,155.50 : x
  2. Step 2: Convert to fraction form
    255,813.90/383,502.02 = 98,155.50/x
  3. Step 3: Cross multiply
    255,813.90x = 383,502.02 × 98,155.50
  4. Step 4: Simplify right side
    255,813.90x = 37,642,832,524.11
  5. Step 5: Solve for x
    x = 37,642,832,524.11/255,813.90
  6. Step 6: Final answer
    x = 147,149.29

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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.