Home / 306,890.40-459,765.36-166,766.88

Finding the Fourth Proportional to 306,890.40, 459,765.36 and 166,766.88

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Solution

The fourth proportional to 306,890.40, 459,765.36 and 166,766.88 is: 249,840.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,890.40 : 459,765.36 = 166,766.88 : x
  2. Step 2: Convert to fraction form
    306,890.40/459,765.36 = 166,766.88/x
  3. Step 3: Cross multiply
    306,890.40x = 459,765.36 × 166,766.88
  4. Step 4: Simplify right side
    306,890.40x = 76,673,634,619.28
  5. Step 5: Solve for x
    x = 76,673,634,619.28/306,890.40
  6. Step 6: Final answer
    x = 249,840.45

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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.