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Finding the Fourth Proportional to 249,328.80, 374,122.80 and 109,101.60

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Solution

The fourth proportional to 249,328.80, 374,122.80 and 109,101.60 is: 163,709.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,328.80 : 374,122.80 = 109,101.60 : x
  2. Step 2: Convert to fraction form
    249,328.80/374,122.80 = 109,101.60/x
  3. Step 3: Cross multiply
    249,328.80x = 374,122.80 × 109,101.60
  4. Step 4: Simplify right side
    249,328.80x = 40,817,396,076.48
  5. Step 5: Solve for x
    x = 40,817,396,076.48/249,328.80
  6. Step 6: Final answer
    x = 163,709.11

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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.