Home / 279,822.81-386,144.21-152,495.67

Finding the Fourth Proportional to 279,822.81, 386,144.21 and 152,495.67

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Solution

The fourth proportional to 279,822.81, 386,144.21 and 152,495.67 is: 210,437.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,822.81 : 386,144.21 = 152,495.67 : x
  2. Step 2: Convert to fraction form
    279,822.81/386,144.21 = 152,495.67/x
  3. Step 3: Cross multiply
    279,822.81x = 386,144.21 × 152,495.67
  4. Step 4: Simplify right side
    279,822.81x = 58,885,319,258.09
  5. Step 5: Solve for x
    x = 58,885,319,258.09/279,822.81
  6. Step 6: Final answer
    x = 210,437.88

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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.