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Finding the Fourth Proportional to 249,610, 374,415 and 83,398

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Solution

The fourth proportional to 249,610, 374,415 and 83,398 is: 125,097

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,610 : 374,415 = 83,398 : x
  2. Step 2: Convert to fraction form
    249,610/374,415 = 83,398/x
  3. Step 3: Cross multiply
    249,610x = 374,415 × 83,398
  4. Step 4: Simplify right side
    249,610x = 31,225,462,170
  5. Step 5: Solve for x
    x = 31,225,462,170/249,610
  6. Step 6: Final answer
    x = 125,097

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.