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Finding the Fourth Proportional to 341,510.80, 512,266.20 and 266,861.20

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Solution

The fourth proportional to 341,510.80, 512,266.20 and 266,861.20 is: 400,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,510.80 : 512,266.20 = 266,861.20 : x
  2. Step 2: Convert to fraction form
    341,510.80/512,266.20 = 266,861.20/x
  3. Step 3: Cross multiply
    341,510.80x = 512,266.20 × 266,861.20
  4. Step 4: Simplify right side
    341,510.80x = 136,703,972,851.44
  5. Step 5: Solve for x
    x = 136,703,972,851.44/341,510.80
  6. Step 6: Final answer
    x = 400,291.80

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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.