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Finding the Third Proportional to 163,740 and 249,984

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Solution

The third proportional to 163,740 and 249,984 is: 381,653.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,740 : 249,984 = 249,984 : x
  2. Step 2: Convert to fraction form
    163,740/249,984 = 249,984/x
  3. Step 3: Cross multiply
    163,740x = 249,984 × 249,984
  4. Step 4: Simplify right side
    163,740x = 62,492,000,256
  5. Step 5: Solve for x
    x = 62,492,000,256/163,740
  6. Step 6: Final answer
    x = 381,653.84

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.