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Finding the Fourth Proportional to 356,651.80, 492,336.54 and 249,641.89

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Solution

The fourth proportional to 356,651.80, 492,336.54 and 249,641.89 is: 344,615.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,651.80 : 492,336.54 = 249,641.89 : x
  2. Step 2: Convert to fraction form
    356,651.80/492,336.54 = 249,641.89/x
  3. Step 3: Cross multiply
    356,651.80x = 492,336.54 × 249,641.89
  4. Step 4: Simplify right side
    356,651.80x = 122,907,821,899.98
  5. Step 5: Solve for x
    x = 122,907,821,899.98/356,651.80
  6. Step 6: Final answer
    x = 344,615.74

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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.