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Finding the Fourth Proportional to 249,794.40, 374,597.56 and 81,270.64

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Solution

The fourth proportional to 249,794.40, 374,597.56 and 81,270.64 is: 121,875.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,794.40 : 374,597.56 = 81,270.64 : x
  2. Step 2: Convert to fraction form
    249,794.40/374,597.56 = 81,270.64/x
  3. Step 3: Cross multiply
    249,794.40x = 374,597.56 × 81,270.64
  4. Step 4: Simplify right side
    249,794.40x = 30,443,783,443.64
  5. Step 5: Solve for x
    x = 30,443,783,443.64/249,794.40
  6. Step 6: Final answer
    x = 121,875.36

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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.