Home / 287,521.46-396,782.30-158,464.67

Finding the Fourth Proportional to 287,521.46, 396,782.30 and 158,464.67

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Solution

The fourth proportional to 287,521.46, 396,782.30 and 158,464.67 is: 218,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,521.46 : 396,782.30 = 158,464.67 : x
  2. Step 2: Convert to fraction form
    287,521.46/396,782.30 = 158,464.67/x
  3. Step 3: Cross multiply
    287,521.46x = 396,782.30 × 158,464.67
  4. Step 4: Simplify right side
    287,521.46x = 62,875,974,643.59
  5. Step 5: Solve for x
    x = 62,875,974,643.59/287,521.46
  6. Step 6: Final answer
    x = 218,682.72

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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.