Home / 257,830.12-355,567.62-171,837.40

Finding the Fourth Proportional to 257,830.12, 355,567.62 and 171,837.40

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Solution

The fourth proportional to 257,830.12, 355,567.62 and 171,837.40 is: 236,977.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,830.12 : 355,567.62 = 171,837.40 : x
  2. Step 2: Convert to fraction form
    257,830.12/355,567.62 = 171,837.40/x
  3. Step 3: Cross multiply
    257,830.12x = 355,567.62 × 171,837.40
  4. Step 4: Simplify right side
    257,830.12x = 61,099,815,344.99
  5. Step 5: Solve for x
    x = 61,099,815,344.99/257,830.12
  6. Step 6: Final answer
    x = 236,977.03

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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.