Home / 302,628.30-453,942.45-81,012.30

Finding the Fourth Proportional to 302,628.30, 453,942.45 and 81,012.30

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Solution

The fourth proportional to 302,628.30, 453,942.45 and 81,012.30 is: 121,518.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,628.30 : 453,942.45 = 81,012.30 : x
  2. Step 2: Convert to fraction form
    302,628.30/453,942.45 = 81,012.30/x
  3. Step 3: Cross multiply
    302,628.30x = 453,942.45 × 81,012.30
  4. Step 4: Simplify right side
    302,628.30x = 36,774,921,942.14
  5. Step 5: Solve for x
    x = 36,774,921,942.14/302,628.30
  6. Step 6: Final answer
    x = 121,518.45

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1.5x scale

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.