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Finding the Fourth Proportional to 249,767, 374,551.88 and 99,979.37

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Solution

The fourth proportional to 249,767, 374,551.88 and 99,979.37 is: 149,929.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,767 : 374,551.88 = 99,979.37 : x
  2. Step 2: Convert to fraction form
    249,767/374,551.88 = 99,979.37/x
  3. Step 3: Cross multiply
    249,767x = 374,551.88 × 99,979.37
  4. Step 4: Simplify right side
    249,767x = 37,447,460,994.72
  5. Step 5: Solve for x
    x = 37,447,460,994.72/249,767
  6. Step 6: Final answer
    x = 149,929.58

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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.