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Finding the Fourth Proportional to 342,880.80, 514,904.40 and 254,234.40

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Solution

The fourth proportional to 342,880.80, 514,904.40 and 254,234.40 is: 381,784.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,880.80 : 514,904.40 = 254,234.40 : x
  2. Step 2: Convert to fraction form
    342,880.80/514,904.40 = 254,234.40/x
  3. Step 3: Cross multiply
    342,880.80x = 514,904.40 × 254,234.40
  4. Step 4: Simplify right side
    342,880.80x = 130,906,411,191.36
  5. Step 5: Solve for x
    x = 130,906,411,191.36/342,880.80
  6. Step 6: Final answer
    x = 381,784.02

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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.