Home / 210,628.20-290,666.91-115,135.27

Finding the Fourth Proportional to 210,628.20, 290,666.91 and 115,135.27

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Solution

The fourth proportional to 210,628.20, 290,666.91 and 115,135.27 is: 158,886.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,628.20 : 290,666.91 = 115,135.27 : x
  2. Step 2: Convert to fraction form
    210,628.20/290,666.91 = 115,135.27/x
  3. Step 3: Cross multiply
    210,628.20x = 290,666.91 × 115,135.27
  4. Step 4: Simplify right side
    210,628.20x = 33,466,013,162.92
  5. Step 5: Solve for x
    x = 33,466,013,162.92/210,628.20
  6. Step 6: Final answer
    x = 158,886.67

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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.