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Finding the Fourth Proportional to 353,188.40, 530,819.40 and 307,569.20

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Solution

The fourth proportional to 353,188.40, 530,819.40 and 307,569.20 is: 462,256.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,188.40 : 530,819.40 = 307,569.20 : x
  2. Step 2: Convert to fraction form
    353,188.40/530,819.40 = 307,569.20/x
  3. Step 3: Cross multiply
    353,188.40x = 530,819.40 × 307,569.20
  4. Step 4: Simplify right side
    353,188.40x = 163,263,698,202.48
  5. Step 5: Solve for x
    x = 163,263,698,202.48/353,188.40
  6. Step 6: Final answer
    x = 462,256.68

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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.