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Finding the Fourth Proportional to 385,130.52, 531,301.02 and 249,208.32

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Solution

The fourth proportional to 385,130.52, 531,301.02 and 249,208.32 is: 343,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,130.52 : 531,301.02 = 249,208.32 : x
  2. Step 2: Convert to fraction form
    385,130.52/531,301.02 = 249,208.32/x
  3. Step 3: Cross multiply
    385,130.52x = 531,301.02 × 249,208.32
  4. Step 4: Simplify right side
    385,130.52x = 132,404,634,608.49
  5. Step 5: Solve for x
    x = 132,404,634,608.49/385,130.52
  6. Step 6: Final answer
    x = 343,791.59

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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.