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Finding the Fourth Proportional to 319,892.46, 480,207.75 and 162,453.07

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Solution

The fourth proportional to 319,892.46, 480,207.75 and 162,453.07 is: 243,867.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,892.46 : 480,207.75 = 162,453.07 : x
  2. Step 2: Convert to fraction form
    319,892.46/480,207.75 = 162,453.07/x
  3. Step 3: Cross multiply
    319,892.46x = 480,207.75 × 162,453.07
  4. Step 4: Simplify right side
    319,892.46x = 78,011,223,225.29
  5. Step 5: Solve for x
    x = 78,011,223,225.29/319,892.46
  6. Step 6: Final answer
    x = 243,867.03

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1.5x scale

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.