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Finding the Fourth Proportional to 453,108, 625,289.80 and 251,904

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Solution

The fourth proportional to 453,108, 625,289.80 and 251,904 is: 347,627.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,108 : 625,289.80 = 251,904 : x
  2. Step 2: Convert to fraction form
    453,108/625,289.80 = 251,904/x
  3. Step 3: Cross multiply
    453,108x = 625,289.80 × 251,904
  4. Step 4: Simplify right side
    453,108x = 157,513,001,779.20
  5. Step 5: Solve for x
    x = 157,513,001,779.20/453,108
  6. Step 6: Final answer
    x = 347,627.94

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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.