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Finding the Fourth Proportional to 286,870.01, 395,870.09 and 159,553.80

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Solution

The fourth proportional to 286,870.01, 395,870.09 and 159,553.80 is: 220,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,870.01 : 395,870.09 = 159,553.80 : x
  2. Step 2: Convert to fraction form
    286,870.01/395,870.09 = 159,553.80/x
  3. Step 3: Cross multiply
    286,870.01x = 395,870.09 × 159,553.80
  4. Step 4: Simplify right side
    286,870.01x = 63,162,576,368.07
  5. Step 5: Solve for x
    x = 63,162,576,368.07/286,870.01
  6. Step 6: Final answer
    x = 220,178.39

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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.