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Finding the Fourth Proportional to 315,077.48, 434,817.48 and 171,845.36

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Solution

The fourth proportional to 315,077.48, 434,817.48 and 171,845.36 is: 237,152.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,077.48 : 434,817.48 = 171,845.36 : x
  2. Step 2: Convert to fraction form
    315,077.48/434,817.48 = 171,845.36/x
  3. Step 3: Cross multiply
    315,077.48x = 434,817.48 × 171,845.36
  4. Step 4: Simplify right side
    315,077.48x = 74,721,366,384.89
  5. Step 5: Solve for x
    x = 74,721,366,384.89/315,077.48
  6. Step 6: Final answer
    x = 237,152.35

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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.