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Finding the Fourth Proportional to 286,280.70, 400,268.10 and 286,280.70

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Solution

The fourth proportional to 286,280.70, 400,268.10 and 286,280.70 is: 400,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,280.70 : 400,268.10 = 286,280.70 : x
  2. Step 2: Convert to fraction form
    286,280.70/400,268.10 = 286,280.70/x
  3. Step 3: Cross multiply
    286,280.70x = 400,268.10 × 286,280.70
  4. Step 4: Simplify right side
    286,280.70x = 114,589,031,855.67
  5. Step 5: Solve for x
    x = 114,589,031,855.67/286,280.70
  6. Step 6: Final answer
    x = 400,268.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.