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Finding the Fourth Proportional to 434,661.93, 651,989.34 and 135,141.93

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Solution

The fourth proportional to 434,661.93, 651,989.34 and 135,141.93 is: 202,711.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,661.93 : 651,989.34 = 135,141.93 : x
  2. Step 2: Convert to fraction form
    434,661.93/651,989.34 = 135,141.93/x
  3. Step 3: Cross multiply
    434,661.93x = 651,989.34 × 135,141.93
  4. Step 4: Simplify right side
    434,661.93x = 88,111,097,747.03
  5. Step 5: Solve for x
    x = 88,111,097,747.03/434,661.93
  6. Step 6: Final answer
    x = 202,711.79

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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.