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Finding the Fourth Proportional to 279,264.94, 385,387.23 and 151,941.40

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Solution

The fourth proportional to 279,264.94, 385,387.23 and 151,941.40 is: 209,680.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,264.94 : 385,387.23 = 151,941.40 : x
  2. Step 2: Convert to fraction form
    279,264.94/385,387.23 = 151,941.40/x
  3. Step 3: Cross multiply
    279,264.94x = 385,387.23 × 151,941.40
  4. Step 4: Simplify right side
    279,264.94x = 58,556,275,268.32
  5. Step 5: Solve for x
    x = 58,556,275,268.32/279,264.94
  6. Step 6: Final answer
    x = 209,680.01

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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.