Home / 287,675.07-396,996.81-160,336.98

Finding the Fourth Proportional to 287,675.07, 396,996.81 and 160,336.98

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Solution

The fourth proportional to 287,675.07, 396,996.81 and 160,336.98 is: 221,267.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,675.07 : 396,996.81 = 160,336.98 : x
  2. Step 2: Convert to fraction form
    287,675.07/396,996.81 = 160,336.98/x
  3. Step 3: Cross multiply
    287,675.07x = 396,996.81 × 160,336.98
  4. Step 4: Simplify right side
    287,675.07x = 63,653,269,585.03
  5. Step 5: Solve for x
    x = 63,653,269,585.03/287,675.07
  6. Step 6: Final answer
    x = 221,267.94

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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.