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Finding the Fourth Proportional to 245,574, 368,280 and 79,323.12

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Solution

The fourth proportional to 245,574, 368,280 and 79,323.12 is: 118,958.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,574 : 368,280 = 79,323.12 : x
  2. Step 2: Convert to fraction form
    245,574/368,280 = 79,323.12/x
  3. Step 3: Cross multiply
    245,574x = 368,280 × 79,323.12
  4. Step 4: Simplify right side
    245,574x = 29,213,118,633.60
  5. Step 5: Solve for x
    x = 29,213,118,633.60/245,574
  6. Step 6: Final answer
    x = 118,958.52

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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.