Home / 353,972.20-530,180.70-307,316.20

Finding the Fourth Proportional to 353,972.20, 530,180.70 and 307,316.20

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Solution

The fourth proportional to 353,972.20, 530,180.70 and 307,316.20 is: 460,299.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,972.20 : 530,180.70 = 307,316.20 : x
  2. Step 2: Convert to fraction form
    353,972.20/530,180.70 = 307,316.20/x
  3. Step 3: Cross multiply
    353,972.20x = 530,180.70 × 307,316.20
  4. Step 4: Simplify right side
    353,972.20x = 162,933,118,037.34
  5. Step 5: Solve for x
    x = 162,933,118,037.34/353,972.20
  6. Step 6: Final answer
    x = 460,299.19

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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.