Home / 385,111.53-531,274.95-249,189.27

Finding the Fourth Proportional to 385,111.53, 531,274.95 and 249,189.27

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Solution

The fourth proportional to 385,111.53, 531,274.95 and 249,189.27 is: 343,765.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,111.53 : 531,274.95 = 249,189.27 : x
  2. Step 2: Convert to fraction form
    385,111.53/531,274.95 = 249,189.27/x
  3. Step 3: Cross multiply
    385,111.53x = 531,274.95 × 249,189.27
  4. Step 4: Simplify right side
    385,111.53x = 132,388,016,959.79
  5. Step 5: Solve for x
    x = 132,388,016,959.79/385,111.53
  6. Step 6: Final answer
    x = 343,765.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.