Home / 492,257.10-738,385.65-118,280.10

Finding the Fourth Proportional to 492,257.10, 738,385.65 and 118,280.10

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Solution

The fourth proportional to 492,257.10, 738,385.65 and 118,280.10 is: 177,420.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,257.10 : 738,385.65 = 118,280.10 : x
  2. Step 2: Convert to fraction form
    492,257.10/738,385.65 = 118,280.10/x
  3. Step 3: Cross multiply
    492,257.10x = 738,385.65 × 118,280.10
  4. Step 4: Simplify right side
    492,257.10x = 87,336,328,520.57
  5. Step 5: Solve for x
    x = 87,336,328,520.57/492,257.10
  6. Step 6: Final answer
    x = 177,420.15

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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.