Home / 306,975.06-423,619.20-171,008.82

Finding the Fourth Proportional to 306,975.06, 423,619.20 and 171,008.82

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Solution

The fourth proportional to 306,975.06, 423,619.20 and 171,008.82 is: 235,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,975.06 : 423,619.20 = 171,008.82 : x
  2. Step 2: Convert to fraction form
    306,975.06/423,619.20 = 171,008.82/x
  3. Step 3: Cross multiply
    306,975.06x = 423,619.20 × 171,008.82
  4. Step 4: Simplify right side
    306,975.06x = 72,442,619,521.34
  5. Step 5: Solve for x
    x = 72,442,619,521.34/306,975.06
  6. Step 6: Final answer
    x = 235,988.62

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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.