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Finding the Fourth Proportional to 366,915.90, 550,373.85 and 260,627.70

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Solution

The fourth proportional to 366,915.90, 550,373.85 and 260,627.70 is: 390,941.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,915.90 : 550,373.85 = 260,627.70 : x
  2. Step 2: Convert to fraction form
    366,915.90/550,373.85 = 260,627.70/x
  3. Step 3: Cross multiply
    366,915.90x = 550,373.85 × 260,627.70
  4. Step 4: Simplify right side
    366,915.90x = 143,442,670,665.65
  5. Step 5: Solve for x
    x = 143,442,670,665.65/366,915.90
  6. Step 6: Final answer
    x = 390,941.55

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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.