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Finding the Fourth Proportional to 331,053.60, 496,580.40 and 310,317.60

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Solution

The fourth proportional to 331,053.60, 496,580.40 and 310,317.60 is: 465,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,053.60 : 496,580.40 = 310,317.60 : x
  2. Step 2: Convert to fraction form
    331,053.60/496,580.40 = 310,317.60/x
  3. Step 3: Cross multiply
    331,053.60x = 496,580.40 × 310,317.60
  4. Step 4: Simplify right side
    331,053.60x = 154,097,637,935.04
  5. Step 5: Solve for x
    x = 154,097,637,935.04/331,053.60
  6. Step 6: Final answer
    x = 465,476.40

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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.