Home / 385,128.31-531,297.96-249,206.13

Finding the Fourth Proportional to 385,128.31, 531,297.96 and 249,206.13

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Solution

The fourth proportional to 385,128.31, 531,297.96 and 249,206.13 is: 343,788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,128.31 : 531,297.96 = 249,206.13 : x
  2. Step 2: Convert to fraction form
    385,128.31/531,297.96 = 249,206.13/x
  3. Step 3: Cross multiply
    385,128.31x = 531,297.96 × 249,206.13
  4. Step 4: Simplify right side
    385,128.31x = 132,402,708,488.50
  5. Step 5: Solve for x
    x = 132,402,708,488.50/385,128.31
  6. Step 6: Final answer
    x = 343,788.56

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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.