Home / 207,156.79-309,013.88-203,731.39

Finding the Fourth Proportional to 207,156.79, 309,013.88 and 203,731.39

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Solution

The fourth proportional to 207,156.79, 309,013.88 and 203,731.39 is: 303,904.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,156.79 : 309,013.88 = 203,731.39 : x
  2. Step 2: Convert to fraction form
    207,156.79/309,013.88 = 203,731.39/x
  3. Step 3: Cross multiply
    207,156.79x = 309,013.88 × 203,731.39
  4. Step 4: Simplify right side
    207,156.79x = 62,955,827,301.69
  5. Step 5: Solve for x
    x = 62,955,827,301.69/207,156.79
  6. Step 6: Final answer
    x = 303,904.24

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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.