Home / 208,724.15-287,861.52-160,442.94

Finding the Fourth Proportional to 208,724.15, 287,861.52 and 160,442.94

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Solution

The fourth proportional to 208,724.15, 287,861.52 and 160,442.94 is: 221,274.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,724.15 : 287,861.52 = 160,442.94 : x
  2. Step 2: Convert to fraction form
    208,724.15/287,861.52 = 160,442.94/x
  3. Step 3: Cross multiply
    208,724.15x = 287,861.52 × 160,442.94
  4. Step 4: Simplify right side
    208,724.15x = 46,185,348,581.67
  5. Step 5: Solve for x
    x = 46,185,348,581.67/208,724.15
  6. Step 6: Final answer
    x = 221,274.59

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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.