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Finding the Fourth Proportional to 279,479.58, 421,102.50 and 230,653.32

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Solution

The fourth proportional to 279,479.58, 421,102.50 and 230,653.32 is: 347,534.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,479.58 : 421,102.50 = 230,653.32 : x
  2. Step 2: Convert to fraction form
    279,479.58/421,102.50 = 230,653.32/x
  3. Step 3: Cross multiply
    279,479.58x = 421,102.50 × 230,653.32
  4. Step 4: Simplify right side
    279,479.58x = 97,128,689,685.30
  5. Step 5: Solve for x
    x = 97,128,689,685.30/279,479.58
  6. Step 6: Final answer
    x = 347,534.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.