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Finding the Fourth Proportional to 340,911.50, 511,441.07 and 130,549.45

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Solution

The fourth proportional to 340,911.50, 511,441.07 and 130,549.45 is: 195,852.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,911.50 : 511,441.07 = 130,549.45 : x
  2. Step 2: Convert to fraction form
    340,911.50/511,441.07 = 130,549.45/x
  3. Step 3: Cross multiply
    340,911.50x = 511,441.07 × 130,549.45
  4. Step 4: Simplify right side
    340,911.50x = 66,768,350,395.91
  5. Step 5: Solve for x
    x = 66,768,350,395.91/340,911.50
  6. Step 6: Final answer
    x = 195,852.44

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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.