Home / 439,890.30-607,055.67-238,686.30

Finding the Fourth Proportional to 439,890.30, 607,055.67 and 238,686.30

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Solution

The fourth proportional to 439,890.30, 607,055.67 and 238,686.30 is: 329,390.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,890.30 : 607,055.67 = 238,686.30 : x
  2. Step 2: Convert to fraction form
    439,890.30/607,055.67 = 238,686.30/x
  3. Step 3: Cross multiply
    439,890.30x = 607,055.67 × 238,686.30
  4. Step 4: Simplify right side
    439,890.30x = 144,895,871,766.32
  5. Step 5: Solve for x
    x = 144,895,871,766.32/439,890.30
  6. Step 6: Final answer
    x = 329,390.92

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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.