Home / 432,936.90-649,420.20-133,415.10

Finding the Fourth Proportional to 432,936.90, 649,420.20 and 133,415.10

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Solution

The fourth proportional to 432,936.90, 649,420.20 and 133,415.10 is: 200,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,936.90 : 649,420.20 = 133,415.10 : x
  2. Step 2: Convert to fraction form
    432,936.90/649,420.20 = 133,415.10/x
  3. Step 3: Cross multiply
    432,936.90x = 649,420.20 × 133,415.10
  4. Step 4: Simplify right side
    432,936.90x = 86,642,460,925.02
  5. Step 5: Solve for x
    x = 86,642,460,925.02/432,936.90
  6. Step 6: Final answer
    x = 200,127.23

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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.