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Finding the Fourth Proportional to 294,699.64, 439,271.35 and 279,740.56

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Solution

The fourth proportional to 294,699.64, 439,271.35 and 279,740.56 is: 416,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,699.64 : 439,271.35 = 279,740.56 : x
  2. Step 2: Convert to fraction form
    294,699.64/439,271.35 = 279,740.56/x
  3. Step 3: Cross multiply
    294,699.64x = 439,271.35 × 279,740.56
  4. Step 4: Simplify right side
    294,699.64x = 122,882,013,440.96
  5. Step 5: Solve for x
    x = 122,882,013,440.96/294,699.64
  6. Step 6: Final answer
    x = 416,973.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.