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Finding the Fourth Proportional to 450,244, 621,356.16 and 249,040

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Solution

The fourth proportional to 450,244, 621,356.16 and 249,040 is: 343,685.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,244 : 621,356.16 = 249,040 : x
  2. Step 2: Convert to fraction form
    450,244/621,356.16 = 249,040/x
  3. Step 3: Cross multiply
    450,244x = 621,356.16 × 249,040
  4. Step 4: Simplify right side
    450,244x = 154,742,538,086.40
  5. Step 5: Solve for x
    x = 154,742,538,086.40/450,244
  6. Step 6: Final answer
    x = 343,685.95

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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.