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Finding the Fourth Proportional to 248,385.60, 342,119.20 and 190,915.04

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Solution

The fourth proportional to 248,385.60, 342,119.20 and 190,915.04 is: 262,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,385.60 : 342,119.20 = 190,915.04 : x
  2. Step 2: Convert to fraction form
    248,385.60/342,119.20 = 190,915.04/x
  3. Step 3: Cross multiply
    248,385.60x = 342,119.20 × 190,915.04
  4. Step 4: Simplify right side
    248,385.60x = 65,315,700,752.77
  5. Step 5: Solve for x
    x = 65,315,700,752.77/248,385.60
  6. Step 6: Final answer
    x = 262,960.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.