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Finding the Fourth Proportional to 309,271.56, 426,787.50 and 181,955.34

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Solution

The fourth proportional to 309,271.56, 426,787.50 and 181,955.34 is: 251,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,271.56 : 426,787.50 = 181,955.34 : x
  2. Step 2: Convert to fraction form
    309,271.56/426,787.50 = 181,955.34/x
  3. Step 3: Cross multiply
    309,271.56x = 426,787.50 × 181,955.34
  4. Step 4: Simplify right side
    309,271.56x = 77,656,264,670.25
  5. Step 5: Solve for x
    x = 77,656,264,670.25/309,271.56
  6. Step 6: Final answer
    x = 251,094.10

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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.