Home / 385,661.68-578,271.03-205,525.33

Finding the Fourth Proportional to 385,661.68, 578,271.03 and 205,525.33

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Solution

The fourth proportional to 385,661.68, 578,271.03 and 205,525.33 is: 308,169.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,661.68 : 578,271.03 = 205,525.33 : x
  2. Step 2: Convert to fraction form
    385,661.68/578,271.03 = 205,525.33/x
  3. Step 3: Cross multiply
    385,661.68x = 578,271.03 × 205,525.33
  4. Step 4: Simplify right side
    385,661.68x = 118,849,344,270.19
  5. Step 5: Solve for x
    x = 118,849,344,270.19/385,661.68
  6. Step 6: Final answer
    x = 308,169.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.