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Finding the Fourth Proportional to 249,660, 374,490 and 74,556

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Solution

The fourth proportional to 249,660, 374,490 and 74,556 is: 111,834

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,660 : 374,490 = 74,556 : x
  2. Step 2: Convert to fraction form
    249,660/374,490 = 74,556/x
  3. Step 3: Cross multiply
    249,660x = 374,490 × 74,556
  4. Step 4: Simplify right side
    249,660x = 27,920,476,440
  5. Step 5: Solve for x
    x = 27,920,476,440/249,660
  6. Step 6: Final answer
    x = 111,834

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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.