Home / 287,346.23-396,509.42-160,033.67

Finding the Fourth Proportional to 287,346.23, 396,509.42 and 160,033.67

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Solution

The fourth proportional to 287,346.23, 396,509.42 and 160,033.67 is: 220,830.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,346.23 : 396,509.42 = 160,033.67 : x
  2. Step 2: Convert to fraction form
    287,346.23/396,509.42 = 160,033.67/x
  3. Step 3: Cross multiply
    287,346.23x = 396,509.42 × 160,033.67
  4. Step 4: Simplify right side
    287,346.23x = 63,454,856,872.00
  5. Step 5: Solve for x
    x = 63,454,856,872.00/287,346.23
  6. Step 6: Final answer
    x = 220,830.66

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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.