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Finding the Fourth Proportional to 296,915.60, 409,194.02 and 210,878.34

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Solution

The fourth proportional to 296,915.60, 409,194.02 and 210,878.34 is: 290,621.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,915.60 : 409,194.02 = 210,878.34 : x
  2. Step 2: Convert to fraction form
    296,915.60/409,194.02 = 210,878.34/x
  3. Step 3: Cross multiply
    296,915.60x = 409,194.02 × 210,878.34
  4. Step 4: Simplify right side
    296,915.60x = 86,290,154,621.14
  5. Step 5: Solve for x
    x = 86,290,154,621.14/296,915.60
  6. Step 6: Final answer
    x = 290,621.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.