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Finding the Fourth Proportional to 279,810.77, 385,253.51 and 254,240.60

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Solution

The fourth proportional to 279,810.77, 385,253.51 and 254,240.60 is: 350,047.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,810.77 : 385,253.51 = 254,240.60 : x
  2. Step 2: Convert to fraction form
    279,810.77/385,253.51 = 254,240.60/x
  3. Step 3: Cross multiply
    279,810.77x = 385,253.51 × 254,240.60
  4. Step 4: Simplify right side
    279,810.77x = 97,947,080,337.04
  5. Step 5: Solve for x
    x = 97,947,080,337.04/279,810.77
  6. Step 6: Final answer
    x = 350,047.58

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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.