Home / 287,811.55-397,182.83-158,755.54

Finding the Fourth Proportional to 287,811.55, 397,182.83 and 158,755.54

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Solution

The fourth proportional to 287,811.55, 397,182.83 and 158,755.54 is: 219,084.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,811.55 : 397,182.83 = 158,755.54 : x
  2. Step 2: Convert to fraction form
    287,811.55/397,182.83 = 158,755.54/x
  3. Step 3: Cross multiply
    287,811.55x = 397,182.83 × 158,755.54
  4. Step 4: Simplify right side
    287,811.55x = 63,054,974,655.38
  5. Step 5: Solve for x
    x = 63,054,974,655.38/287,811.55
  6. Step 6: Final answer
    x = 219,084.24

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1.5x scale

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.