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Finding the Fourth Proportional to 253,924.80, 380,984.40 and 249,939.60

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Solution

The fourth proportional to 253,924.80, 380,984.40 and 249,939.60 is: 375,005.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,924.80 : 380,984.40 = 249,939.60 : x
  2. Step 2: Convert to fraction form
    253,924.80/380,984.40 = 249,939.60/x
  3. Step 3: Cross multiply
    253,924.80x = 380,984.40 × 249,939.60
  4. Step 4: Simplify right side
    253,924.80x = 95,223,088,542.24
  5. Step 5: Solve for x
    x = 95,223,088,542.24/253,924.80
  6. Step 6: Final answer
    x = 375,005.07

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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.