Home / 385,084.22-531,239.40-249,162.48

Finding the Fourth Proportional to 385,084.22, 531,239.40 and 249,162.48

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Solution

The fourth proportional to 385,084.22, 531,239.40 and 249,162.48 is: 343,729.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,084.22 : 531,239.40 = 249,162.48 : x
  2. Step 2: Convert to fraction form
    385,084.22/531,239.40 = 249,162.48/x
  3. Step 3: Cross multiply
    385,084.22x = 531,239.40 × 249,162.48
  4. Step 4: Simplify right side
    385,084.22x = 132,364,926,377.71
  5. Step 5: Solve for x
    x = 132,364,926,377.71/385,084.22
  6. Step 6: Final answer
    x = 343,729.82

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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.