Home / 279,946.73-386,332.28-157,441.45

Finding the Fourth Proportional to 279,946.73, 386,332.28 and 157,441.45

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Solution

The fourth proportional to 279,946.73, 386,332.28 and 157,441.45 is: 217,272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,946.73 : 386,332.28 = 157,441.45 : x
  2. Step 2: Convert to fraction form
    279,946.73/386,332.28 = 157,441.45/x
  3. Step 3: Cross multiply
    279,946.73x = 386,332.28 × 157,441.45
  4. Step 4: Simplify right side
    279,946.73x = 60,824,713,772.78
  5. Step 5: Solve for x
    x = 60,824,713,772.78/279,946.73
  6. Step 6: Final answer
    x = 217,272.46

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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.