Home / 432,935.15-649,473.81-133,415.78

Finding the Fourth Proportional to 432,935.15, 649,473.81 and 133,415.78

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Solution

The fourth proportional to 432,935.15, 649,473.81 and 133,415.78 is: 200,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,935.15 : 649,473.81 = 133,415.78 : x
  2. Step 2: Convert to fraction form
    432,935.15/649,473.81 = 133,415.78/x
  3. Step 3: Cross multiply
    432,935.15x = 649,473.81 × 133,415.78
  4. Step 4: Simplify right side
    432,935.15x = 86,650,054,283.64
  5. Step 5: Solve for x
    x = 86,650,054,283.64/432,935.15
  6. Step 6: Final answer
    x = 200,145.57

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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.