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Finding the Fourth Proportional to 371,519.96, 512,703.48 and 210,370.64

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Solution

The fourth proportional to 371,519.96, 512,703.48 and 210,370.64 is: 290,314.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,519.96 : 512,703.48 = 210,370.64 : x
  2. Step 2: Convert to fraction form
    371,519.96/512,703.48 = 210,370.64/x
  3. Step 3: Cross multiply
    371,519.96x = 512,703.48 × 210,370.64
  4. Step 4: Simplify right side
    371,519.96x = 107,857,759,217.83
  5. Step 5: Solve for x
    x = 107,857,759,217.83/371,519.96
  6. Step 6: Final answer
    x = 290,314.84

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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.