Home / 306,215.90-459,417.24-156,561.31

Finding the Fourth Proportional to 306,215.90, 459,417.24 and 156,561.31

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Solution

The fourth proportional to 306,215.90, 459,417.24 and 156,561.31 is: 234,889.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,215.90 : 459,417.24 = 156,561.31 : x
  2. Step 2: Convert to fraction form
    306,215.90/459,417.24 = 156,561.31/x
  3. Step 3: Cross multiply
    306,215.90x = 459,417.24 × 156,561.31
  4. Step 4: Simplify right side
    306,215.90x = 71,926,964,148.18
  5. Step 5: Solve for x
    x = 71,926,964,148.18/306,215.90
  6. Step 6: Final answer
    x = 234,889.71

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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.