Home / 286,830.65-430,245.77-87,150.26

Finding the Fourth Proportional to 286,830.65, 430,245.77 and 87,150.26

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Solution

The fourth proportional to 286,830.65, 430,245.77 and 87,150.26 is: 130,725.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,830.65 : 430,245.77 = 87,150.26 : x
  2. Step 2: Convert to fraction form
    286,830.65/430,245.77 = 87,150.26/x
  3. Step 3: Cross multiply
    286,830.65x = 430,245.77 × 87,150.26
  4. Step 4: Simplify right side
    286,830.65x = 37,496,028,132.42
  5. Step 5: Solve for x
    x = 37,496,028,132.42/286,830.65
  6. Step 6: Final answer
    x = 130,725.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.