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Finding the Fourth Proportional to 215,681.74, 297,605.81 and 125,020.01

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Solution

The fourth proportional to 215,681.74, 297,605.81 and 125,020.01 is: 172,507.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,681.74 : 297,605.81 = 125,020.01 : x
  2. Step 2: Convert to fraction form
    215,681.74/297,605.81 = 125,020.01/x
  3. Step 3: Cross multiply
    215,681.74x = 297,605.81 × 125,020.01
  4. Step 4: Simplify right side
    215,681.74x = 37,206,682,398.82
  5. Step 5: Solve for x
    x = 37,206,682,398.82/215,681.74
  6. Step 6: Final answer
    x = 172,507.34

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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.