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Finding the Fourth Proportional to 450,374.50, 621,536.52 and 249,170.50

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Solution

The fourth proportional to 450,374.50, 621,536.52 and 249,170.50 is: 343,866.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,374.50 : 621,536.52 = 249,170.50 : x
  2. Step 2: Convert to fraction form
    450,374.50/621,536.52 = 249,170.50/x
  3. Step 3: Cross multiply
    450,374.50x = 621,536.52 × 249,170.50
  4. Step 4: Simplify right side
    450,374.50x = 154,868,565,456.66
  5. Step 5: Solve for x
    x = 154,868,565,456.66/450,374.50
  6. Step 6: Final answer
    x = 343,866.19

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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.