Home / 388,421.18-536,100.63-245,084.66

Finding the Fourth Proportional to 388,421.18, 536,100.63 and 245,084.66

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Solution

The fourth proportional to 388,421.18, 536,100.63 and 245,084.66 is: 338,266.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,421.18 : 536,100.63 = 245,084.66 : x
  2. Step 2: Convert to fraction form
    388,421.18/536,100.63 = 245,084.66/x
  3. Step 3: Cross multiply
    388,421.18x = 536,100.63 × 245,084.66
  4. Step 4: Simplify right side
    388,421.18x = 131,390,040,629.34
  5. Step 5: Solve for x
    x = 131,390,040,629.34/388,421.18
  6. Step 6: Final answer
    x = 338,266.93

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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.