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Finding the Fourth Proportional to 315,756.42, 435,722.96 and 179,804.28

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Solution

The fourth proportional to 315,756.42, 435,722.96 and 179,804.28 is: 248,118.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,756.42 : 435,722.96 = 179,804.28 : x
  2. Step 2: Convert to fraction form
    315,756.42/435,722.96 = 179,804.28/x
  3. Step 3: Cross multiply
    315,756.42x = 435,722.96 × 179,804.28
  4. Step 4: Simplify right side
    315,756.42x = 78,344,853,102.27
  5. Step 5: Solve for x
    x = 78,344,853,102.27/315,756.42
  6. Step 6: Final answer
    x = 248,118.01

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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.