Home / 279,259.69-385,382.31-151,935.38

Finding the Fourth Proportional to 279,259.69, 385,382.31 and 151,935.38

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Solution

The fourth proportional to 279,259.69, 385,382.31 and 151,935.38 is: 209,672.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,259.69 : 385,382.31 = 151,935.38 : x
  2. Step 2: Convert to fraction form
    279,259.69/385,382.31 = 151,935.38/x
  3. Step 3: Cross multiply
    279,259.69x = 385,382.31 × 151,935.38
  4. Step 4: Simplify right side
    279,259.69x = 58,553,207,715.13
  5. Step 5: Solve for x
    x = 58,553,207,715.13/279,259.69
  6. Step 6: Final answer
    x = 209,672.97

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1.5x scale

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.