Home / 274,543.73-378,870.50-153,685.25

Finding the Fourth Proportional to 274,543.73, 378,870.50 and 153,685.25

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Solution

The fourth proportional to 274,543.73, 378,870.50 and 153,685.25 is: 212,085.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,543.73 : 378,870.50 = 153,685.25 : x
  2. Step 2: Convert to fraction form
    274,543.73/378,870.50 = 153,685.25/x
  3. Step 3: Cross multiply
    274,543.73x = 378,870.50 × 153,685.25
  4. Step 4: Simplify right side
    274,543.73x = 58,226,804,847.35
  5. Step 5: Solve for x
    x = 58,226,804,847.35/274,543.73
  6. Step 6: Final answer
    x = 212,085.72

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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.