Home / 385,130.36-531,300.80-249,208.17

Finding the Fourth Proportional to 385,130.36, 531,300.80 and 249,208.17

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Solution

The fourth proportional to 385,130.36, 531,300.80 and 249,208.17 is: 343,791.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,130.36 : 531,300.80 = 249,208.17 : x
  2. Step 2: Convert to fraction form
    385,130.36/531,300.80 = 249,208.17/x
  3. Step 3: Cross multiply
    385,130.36x = 531,300.80 × 249,208.17
  4. Step 4: Simplify right side
    385,130.36x = 132,404,498,841.50
  5. Step 5: Solve for x
    x = 132,404,498,841.50/385,130.36
  6. Step 6: Final answer
    x = 343,791.39

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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.