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Finding the Fourth Proportional to 342,218.00, 513,064.55 and 209,160.92

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Solution

The fourth proportional to 342,218.00, 513,064.55 and 209,160.92 is: 313,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,218.00 : 513,064.55 = 209,160.92 : x
  2. Step 2: Convert to fraction form
    342,218.00/513,064.55 = 209,160.92/x
  3. Step 3: Cross multiply
    342,218.00x = 513,064.55 × 209,160.92
  4. Step 4: Simplify right side
    342,218.00x = 107,313,049,686.26
  5. Step 5: Solve for x
    x = 107,313,049,686.26/342,218.00
  6. Step 6: Final answer
    x = 313,580.97

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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.