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Finding the Fourth Proportional to 249,396, 344,043.16 and 147,372.12

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Solution

The fourth proportional to 249,396, 344,043.16 and 147,372.12 is: 203,300.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,396 : 344,043.16 = 147,372.12 : x
  2. Step 2: Convert to fraction form
    249,396/344,043.16 = 147,372.12/x
  3. Step 3: Cross multiply
    249,396x = 344,043.16 × 147,372.12
  4. Step 4: Simplify right side
    249,396x = 50,702,369,860.70
  5. Step 5: Solve for x
    x = 50,702,369,860.70/249,396
  6. Step 6: Final answer
    x = 203,300.65

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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.