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Finding the Fourth Proportional to 341,812.30, 512,902.32 and 142,270.42

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Solution

The fourth proportional to 341,812.30, 512,902.32 and 142,270.42 is: 213,482.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,812.30 : 512,902.32 = 142,270.42 : x
  2. Step 2: Convert to fraction form
    341,812.30/512,902.32 = 142,270.42/x
  3. Step 3: Cross multiply
    341,812.30x = 512,902.32 × 142,270.42
  4. Step 4: Simplify right side
    341,812.30x = 72,970,828,485.37
  5. Step 5: Solve for x
    x = 72,970,828,485.37/341,812.30
  6. Step 6: Final answer
    x = 213,482.16

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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.