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Finding the Fourth Proportional to 341,640.80, 512,461.20 and 275,210.70

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Solution

The fourth proportional to 341,640.80, 512,461.20 and 275,210.70 is: 412,816.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,640.80 : 512,461.20 = 275,210.70 : x
  2. Step 2: Convert to fraction form
    341,640.80/512,461.20 = 275,210.70/x
  3. Step 3: Cross multiply
    341,640.80x = 512,461.20 × 275,210.70
  4. Step 4: Simplify right side
    341,640.80x = 141,034,805,574.84
  5. Step 5: Solve for x
    x = 141,034,805,574.84/341,640.80
  6. Step 6: Final answer
    x = 412,816.05

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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.