Home / 307,984.14-424,988.10-172,007.28

Finding the Fourth Proportional to 307,984.14, 424,988.10 and 172,007.28

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Solution

The fourth proportional to 307,984.14, 424,988.10 and 172,007.28 is: 237,353.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,984.14 : 424,988.10 = 172,007.28 : x
  2. Step 2: Convert to fraction form
    307,984.14/424,988.10 = 172,007.28/x
  3. Step 3: Cross multiply
    307,984.14x = 424,988.10 × 172,007.28
  4. Step 4: Simplify right side
    307,984.14x = 73,101,047,113.37
  5. Step 5: Solve for x
    x = 73,101,047,113.37/307,984.14
  6. Step 6: Final answer
    x = 237,353.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.