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Finding the Fourth Proportional to 366,898.40, 549,829.20 and 255,960.80

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Solution

The fourth proportional to 366,898.40, 549,829.20 and 255,960.80 is: 383,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,898.40 : 549,829.20 = 255,960.80 : x
  2. Step 2: Convert to fraction form
    366,898.40/549,829.20 = 255,960.80/x
  3. Step 3: Cross multiply
    366,898.40x = 549,829.20 × 255,960.80
  4. Step 4: Simplify right side
    366,898.40x = 140,734,721,895.36
  5. Step 5: Solve for x
    x = 140,734,721,895.36/366,898.40
  6. Step 6: Final answer
    x = 383,579.55

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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.