Home / 286,389.21-427,490.16-265,573.83

Finding the Fourth Proportional to 286,389.21, 427,490.16 and 265,573.83

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Solution

The fourth proportional to 286,389.21, 427,490.16 and 265,573.83 is: 396,419.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,389.21 : 427,490.16 = 265,573.83 : x
  2. Step 2: Convert to fraction form
    286,389.21/427,490.16 = 265,573.83/x
  3. Step 3: Cross multiply
    286,389.21x = 427,490.16 × 265,573.83
  4. Step 4: Simplify right side
    286,389.21x = 113,530,199,078.51
  5. Step 5: Solve for x
    x = 113,530,199,078.51/286,389.21
  6. Step 6: Final answer
    x = 396,419.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.