Home / 431,914.84-647,878.02-151,440.28

Finding the Fourth Proportional to 431,914.84, 647,878.02 and 151,440.28

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Solution

The fourth proportional to 431,914.84, 647,878.02 and 151,440.28 is: 227,162.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,914.84 : 647,878.02 = 151,440.28 : x
  2. Step 2: Convert to fraction form
    431,914.84/647,878.02 = 151,440.28/x
  3. Step 3: Cross multiply
    431,914.84x = 647,878.02 × 151,440.28
  4. Step 4: Simplify right side
    431,914.84x = 98,114,828,754.65
  5. Step 5: Solve for x
    x = 98,114,828,754.65/431,914.84
  6. Step 6: Final answer
    x = 227,162.44

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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.