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Finding the Fourth Proportional to 296,492.40, 445,273.20 and 259,750.80

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Solution

The fourth proportional to 296,492.40, 445,273.20 and 259,750.80 is: 390,094.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,492.40 : 445,273.20 = 259,750.80 : x
  2. Step 2: Convert to fraction form
    296,492.40/445,273.20 = 259,750.80/x
  3. Step 3: Cross multiply
    296,492.40x = 445,273.20 × 259,750.80
  4. Step 4: Simplify right side
    296,492.40x = 115,660,069,918.56
  5. Step 5: Solve for x
    x = 115,660,069,918.56/296,492.40
  6. Step 6: Final answer
    x = 390,094.55

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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.