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Finding the Fourth Proportional to 300,044.60, 448,973.40 and 221,312.60

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Solution

The fourth proportional to 300,044.60, 448,973.40 and 221,312.60 is: 331,162.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,044.60 : 448,973.40 = 221,312.60 : x
  2. Step 2: Convert to fraction form
    300,044.60/448,973.40 = 221,312.60/x
  3. Step 3: Cross multiply
    300,044.60x = 448,973.40 × 221,312.60
  4. Step 4: Simplify right side
    300,044.60x = 99,363,470,484.84
  5. Step 5: Solve for x
    x = 99,363,470,484.84/300,044.60
  6. Step 6: Final answer
    x = 331,162.34

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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.