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Finding the Fourth Proportional to 279,429.56, 385,663.12 and 164,701.51

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Solution

The fourth proportional to 279,429.56, 385,663.12 and 164,701.51 is: 227,317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,429.56 : 385,663.12 = 164,701.51 : x
  2. Step 2: Convert to fraction form
    279,429.56/385,663.12 = 164,701.51/x
  3. Step 3: Cross multiply
    279,429.56x = 385,663.12 × 164,701.51
  4. Step 4: Simplify right side
    279,429.56x = 63,519,297,148.22
  5. Step 5: Solve for x
    x = 63,519,297,148.22/279,429.56
  6. Step 6: Final answer
    x = 227,317.74

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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.