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Finding the Fourth Proportional to 450,661.88, 621,913.40 and 249,457.88

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Solution

The fourth proportional to 450,661.88, 621,913.40 and 249,457.88 is: 344,251.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,661.88 : 621,913.40 = 249,457.88 : x
  2. Step 2: Convert to fraction form
    450,661.88/621,913.40 = 249,457.88/x
  3. Step 3: Cross multiply
    450,661.88x = 621,913.40 × 249,457.88
  4. Step 4: Simplify right side
    450,661.88x = 155,141,193,950.74
  5. Step 5: Solve for x
    x = 155,141,193,950.74/450,661.88
  6. Step 6: Final answer
    x = 344,251.87

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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.