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Finding the Fourth Proportional to 301,752.78, 452,628.56 and 77,113.20

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Solution

The fourth proportional to 301,752.78, 452,628.56 and 77,113.20 is: 115,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,752.78 : 452,628.56 = 77,113.20 : x
  2. Step 2: Convert to fraction form
    301,752.78/452,628.56 = 77,113.20/x
  3. Step 3: Cross multiply
    301,752.78x = 452,628.56 × 77,113.20
  4. Step 4: Simplify right side
    301,752.78x = 34,903,636,672.99
  5. Step 5: Solve for x
    x = 34,903,636,672.99/301,752.78
  6. Step 6: Final answer
    x = 115,669.64

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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.