Home / 279,288.63-385,426.53-151,972.47

Finding the Fourth Proportional to 279,288.63, 385,426.53 and 151,972.47

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Solution

The fourth proportional to 279,288.63, 385,426.53 and 151,972.47 is: 209,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,288.63 : 385,426.53 = 151,972.47 : x
  2. Step 2: Convert to fraction form
    279,288.63/385,426.53 = 151,972.47/x
  3. Step 3: Cross multiply
    279,288.63x = 385,426.53 × 151,972.47
  4. Step 4: Simplify right side
    279,288.63x = 58,574,221,767.63
  5. Step 5: Solve for x
    x = 58,574,221,767.63/279,288.63
  6. Step 6: Final answer
    x = 209,726.48

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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.