Home / 289,274.40-432,152.48-187,241.28

Finding the Fourth Proportional to 289,274.40, 432,152.48 and 187,241.28

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Solution

The fourth proportional to 289,274.40, 432,152.48 and 187,241.28 is: 279,723.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,274.40 : 432,152.48 = 187,241.28 : x
  2. Step 2: Convert to fraction form
    289,274.40/432,152.48 = 187,241.28/x
  3. Step 3: Cross multiply
    289,274.40x = 432,152.48 × 187,241.28
  4. Step 4: Simplify right side
    289,274.40x = 80,916,784,896.89
  5. Step 5: Solve for x
    x = 80,916,784,896.89/289,274.40
  6. Step 6: Final answer
    x = 279,723.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.