Home / 386,468.60-579,242.10-161,828.60

Finding the Fourth Proportional to 386,468.60, 579,242.10 and 161,828.60

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Solution

The fourth proportional to 386,468.60, 579,242.10 and 161,828.60 is: 242,549.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,468.60 : 579,242.10 = 161,828.60 : x
  2. Step 2: Convert to fraction form
    386,468.60/579,242.10 = 161,828.60/x
  3. Step 3: Cross multiply
    386,468.60x = 579,242.10 × 161,828.60
  4. Step 4: Simplify right side
    386,468.60x = 93,737,938,104.06
  5. Step 5: Solve for x
    x = 93,737,938,104.06/386,468.60
  6. Step 6: Final answer
    x = 242,549.95

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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.