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Finding the Fourth Proportional to 329,070.80, 493,217.40 and 245,867.60

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Solution

The fourth proportional to 329,070.80, 493,217.40 and 245,867.60 is: 368,510.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,070.80 : 493,217.40 = 245,867.60 : x
  2. Step 2: Convert to fraction form
    329,070.80/493,217.40 = 245,867.60/x
  3. Step 3: Cross multiply
    329,070.80x = 493,217.40 × 245,867.60
  4. Step 4: Simplify right side
    329,070.80x = 121,266,178,416.24
  5. Step 5: Solve for x
    x = 121,266,178,416.24/329,070.80
  6. Step 6: Final answer
    x = 368,510.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.