Home / 279,261.51-385,390.49-151,941.93

Finding the Fourth Proportional to 279,261.51, 385,390.49 and 151,941.93

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Solution

The fourth proportional to 279,261.51, 385,390.49 and 151,941.93 is: 209,685.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,261.51 : 385,390.49 = 151,941.93 : x
  2. Step 2: Convert to fraction form
    279,261.51/385,390.49 = 151,941.93/x
  3. Step 3: Cross multiply
    279,261.51x = 385,390.49 × 151,941.93
  4. Step 4: Simplify right side
    279,261.51x = 58,556,974,094.54
  5. Step 5: Solve for x
    x = 58,556,974,094.54/279,261.51
  6. Step 6: Final answer
    x = 209,685.09

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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.