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Finding the Fourth Proportional to 450,234, 621,342.36 and 249,030

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Solution

The fourth proportional to 450,234, 621,342.36 and 249,030 is: 343,672.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,234 : 621,342.36 = 249,030 : x
  2. Step 2: Convert to fraction form
    450,234/621,342.36 = 249,030/x
  3. Step 3: Cross multiply
    450,234x = 621,342.36 × 249,030
  4. Step 4: Simplify right side
    450,234x = 154,732,887,910.80
  5. Step 5: Solve for x
    x = 154,732,887,910.80/450,234
  6. Step 6: Final answer
    x = 343,672.15

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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.