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Finding the Fourth Proportional to 299,041.73, 448,501.42 and 85,752.51

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Solution

The fourth proportional to 299,041.73, 448,501.42 and 85,752.51 is: 128,611.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,041.73 : 448,501.42 = 85,752.51 : x
  2. Step 2: Convert to fraction form
    299,041.73/448,501.42 = 85,752.51/x
  3. Step 3: Cross multiply
    299,041.73x = 448,501.42 × 85,752.51
  4. Step 4: Simplify right side
    299,041.73x = 38,460,122,503.56
  5. Step 5: Solve for x
    x = 38,460,122,503.56/299,041.73
  6. Step 6: Final answer
    x = 128,611.22

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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.