Home / 219,313.28-302,657.76-123,821.36

Finding the Fourth Proportional to 219,313.28, 302,657.76 and 123,821.36

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Solution

The fourth proportional to 219,313.28, 302,657.76 and 123,821.36 is: 170,876.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,313.28 : 302,657.76 = 123,821.36 : x
  2. Step 2: Convert to fraction form
    219,313.28/302,657.76 = 123,821.36/x
  3. Step 3: Cross multiply
    219,313.28x = 302,657.76 × 123,821.36
  4. Step 4: Simplify right side
    219,313.28x = 37,475,495,457.75
  5. Step 5: Solve for x
    x = 37,475,495,457.75/219,313.28
  6. Step 6: Final answer
    x = 170,876.54

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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.