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Finding the Fourth Proportional to 301,239.05, 451,543.28 and 101,490.39

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Solution

The fourth proportional to 301,239.05, 451,543.28 and 101,490.39 is: 152,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,239.05 : 451,543.28 = 101,490.39 : x
  2. Step 2: Convert to fraction form
    301,239.05/451,543.28 = 101,490.39/x
  3. Step 3: Cross multiply
    301,239.05x = 451,543.28 × 101,490.39
  4. Step 4: Simplify right side
    301,239.05x = 45,827,303,081.63
  5. Step 5: Solve for x
    x = 45,827,303,081.63/301,239.05
  6. Step 6: Final answer
    x = 152,129.36

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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.