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Finding the Fourth Proportional to 299,039.76, 448,483.23 and 88,628.58

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Solution

The fourth proportional to 299,039.76, 448,483.23 and 88,628.58 is: 132,920.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,039.76 : 448,483.23 = 88,628.58 : x
  2. Step 2: Convert to fraction form
    299,039.76/448,483.23 = 88,628.58/x
  3. Step 3: Cross multiply
    299,039.76x = 448,483.23 × 88,628.58
  4. Step 4: Simplify right side
    299,039.76x = 39,748,431,828.71
  5. Step 5: Solve for x
    x = 39,748,431,828.71/299,039.76
  6. Step 6: Final answer
    x = 132,920.22

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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.