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Finding the Fourth Proportional to 371,504.40, 512,666.60 and 210,399.04

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Solution

The fourth proportional to 371,504.40, 512,666.60 and 210,399.04 is: 290,345.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,504.40 : 512,666.60 = 210,399.04 : x
  2. Step 2: Convert to fraction form
    371,504.40/512,666.60 = 210,399.04/x
  3. Step 3: Cross multiply
    371,504.40x = 512,666.60 × 210,399.04
  4. Step 4: Simplify right side
    371,504.40x = 107,864,560,480.06
  5. Step 5: Solve for x
    x = 107,864,560,480.06/371,504.40
  6. Step 6: Final answer
    x = 290,345.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.