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Finding the Fourth Proportional to 249,652.80, 374,480.80 and 99,905.60

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Solution

The fourth proportional to 249,652.80, 374,480.80 and 99,905.60 is: 149,859.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,652.80 : 374,480.80 = 99,905.60 : x
  2. Step 2: Convert to fraction form
    249,652.80/374,480.80 = 99,905.60/x
  3. Step 3: Cross multiply
    249,652.80x = 374,480.80 × 99,905.60
  4. Step 4: Simplify right side
    249,652.80x = 37,412,729,012.48
  5. Step 5: Solve for x
    x = 37,412,729,012.48/249,652.80
  6. Step 6: Final answer
    x = 149,859.04

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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.