Home / 205,045.20-307,567.80-171,867.60

Finding the Fourth Proportional to 205,045.20, 307,567.80 and 171,867.60

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Solution

The fourth proportional to 205,045.20, 307,567.80 and 171,867.60 is: 257,801.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,045.20 : 307,567.80 = 171,867.60 : x
  2. Step 2: Convert to fraction form
    205,045.20/307,567.80 = 171,867.60/x
  3. Step 3: Cross multiply
    205,045.20x = 307,567.80 × 171,867.60
  4. Step 4: Simplify right side
    205,045.20x = 52,860,939,623.28
  5. Step 5: Solve for x
    x = 52,860,939,623.28/205,045.20
  6. Step 6: Final answer
    x = 257,801.40

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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.