Home / 432,048.20-648,072.30-245,424.20

Finding the Fourth Proportional to 432,048.20, 648,072.30 and 245,424.20

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Solution

The fourth proportional to 432,048.20, 648,072.30 and 245,424.20 is: 368,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,048.20 : 648,072.30 = 245,424.20 : x
  2. Step 2: Convert to fraction form
    432,048.20/648,072.30 = 245,424.20/x
  3. Step 3: Cross multiply
    432,048.20x = 648,072.30 × 245,424.20
  4. Step 4: Simplify right side
    432,048.20x = 159,052,625,769.66
  5. Step 5: Solve for x
    x = 159,052,625,769.66/432,048.20
  6. Step 6: Final answer
    x = 368,136.30

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1.5x scale

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.