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Finding the Fourth Proportional to 346,431.60, 519,663.60 and 109,792.80

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Solution

The fourth proportional to 346,431.60, 519,663.60 and 109,792.80 is: 164,694.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,431.60 : 519,663.60 = 109,792.80 : x
  2. Step 2: Convert to fraction form
    346,431.60/519,663.60 = 109,792.80/x
  3. Step 3: Cross multiply
    346,431.60x = 519,663.60 × 109,792.80
  4. Step 4: Simplify right side
    346,431.60x = 57,055,321,702.08
  5. Step 5: Solve for x
    x = 57,055,321,702.08/346,431.60
  6. Step 6: Final answer
    x = 164,694.33

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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.