Home / 226,886.45-312,428.03-221,851.67

Finding the Fourth Proportional to 226,886.45, 312,428.03 and 221,851.67

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Solution

The fourth proportional to 226,886.45, 312,428.03 and 221,851.67 is: 305,495.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,886.45 : 312,428.03 = 221,851.67 : x
  2. Step 2: Convert to fraction form
    226,886.45/312,428.03 = 221,851.67/x
  3. Step 3: Cross multiply
    226,886.45x = 312,428.03 × 221,851.67
  4. Step 4: Simplify right side
    226,886.45x = 69,312,677,538.91
  5. Step 5: Solve for x
    x = 69,312,677,538.91/226,886.45
  6. Step 6: Final answer
    x = 305,495.01

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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.