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Finding the Fourth Proportional to 235,749.69, 325,341.62 and 145,157.93

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Solution

The fourth proportional to 235,749.69, 325,341.62 and 145,157.93 is: 200,322.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,749.69 : 325,341.62 = 145,157.93 : x
  2. Step 2: Convert to fraction form
    235,749.69/325,341.62 = 145,157.93/x
  3. Step 3: Cross multiply
    235,749.69x = 325,341.62 × 145,157.93
  4. Step 4: Simplify right side
    235,749.69x = 47,225,916,102.05
  5. Step 5: Solve for x
    x = 47,225,916,102.05/235,749.69
  6. Step 6: Final answer
    x = 200,322.28

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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.