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Finding the Fourth Proportional to 300,722.51, 415,014.48 and 164,756.72

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Solution

The fourth proportional to 300,722.51, 415,014.48 and 164,756.72 is: 227,373.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,722.51 : 415,014.48 = 164,756.72 : x
  2. Step 2: Convert to fraction form
    300,722.51/415,014.48 = 164,756.72/x
  3. Step 3: Cross multiply
    300,722.51x = 415,014.48 × 164,756.72
  4. Step 4: Simplify right side
    300,722.51x = 68,376,422,402.23
  5. Step 5: Solve for x
    x = 68,376,422,402.23/300,722.51
  6. Step 6: Final answer
    x = 227,373.81

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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.