Home / 307,561.20-423,804.60-226,860.90

Finding the Fourth Proportional to 307,561.20, 423,804.60 and 226,860.90

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Solution

The fourth proportional to 307,561.20, 423,804.60 and 226,860.90 is: 312,603.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,561.20 : 423,804.60 = 226,860.90 : x
  2. Step 2: Convert to fraction form
    307,561.20/423,804.60 = 226,860.90/x
  3. Step 3: Cross multiply
    307,561.20x = 423,804.60 × 226,860.90
  4. Step 4: Simplify right side
    307,561.20x = 96,144,692,980.14
  5. Step 5: Solve for x
    x = 96,144,692,980.14/307,561.20
  6. Step 6: Final answer
    x = 312,603.45

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1.5x scale

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.