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Finding the Fourth Proportional to 249,395.62, 344,042.64 and 147,371.72

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Solution

The fourth proportional to 249,395.62, 344,042.64 and 147,371.72 is: 203,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,395.62 : 344,042.64 = 147,371.72 : x
  2. Step 2: Convert to fraction form
    249,395.62/344,042.64 = 147,371.72/x
  3. Step 3: Cross multiply
    249,395.62x = 344,042.64 × 147,371.72
  4. Step 4: Simplify right side
    249,395.62x = 50,702,155,610.14
  5. Step 5: Solve for x
    x = 50,702,155,610.14/249,395.62
  6. Step 6: Final answer
    x = 203,300.10

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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.