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Finding the Fourth Proportional to 453,954.23, 625,391.25 and 315,895.81

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Solution

The fourth proportional to 453,954.23, 625,391.25 and 315,895.81 is: 435,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,954.23 : 625,391.25 = 315,895.81 : x
  2. Step 2: Convert to fraction form
    453,954.23/625,391.25 = 315,895.81/x
  3. Step 3: Cross multiply
    453,954.23x = 625,391.25 × 315,895.81
  4. Step 4: Simplify right side
    453,954.23x = 197,558,475,485.66
  5. Step 5: Solve for x
    x = 197,558,475,485.66/453,954.23
  6. Step 6: Final answer
    x = 435,194.70

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Why These Related Problems?

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