Home / 326,985.91-490,603.40-113,777.51

Finding the Fourth Proportional to 326,985.91, 490,603.40 and 113,777.51

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Solution

The fourth proportional to 326,985.91, 490,603.40 and 113,777.51 is: 170,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,985.91 : 490,603.40 = 113,777.51 : x
  2. Step 2: Convert to fraction form
    326,985.91/490,603.40 = 113,777.51/x
  3. Step 3: Cross multiply
    326,985.91x = 490,603.40 × 113,777.51
  4. Step 4: Simplify right side
    326,985.91x = 55,819,632,307.47
  5. Step 5: Solve for x
    x = 55,819,632,307.47/326,985.91
  6. Step 6: Final answer
    x = 170,709.60

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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.