Home / 219,002.78-302,224.20-118,400.78

Finding the Fourth Proportional to 219,002.78, 302,224.20 and 118,400.78

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Solution

The fourth proportional to 219,002.78, 302,224.20 and 118,400.78 is: 163,393.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,002.78 : 302,224.20 = 118,400.78 : x
  2. Step 2: Convert to fraction form
    219,002.78/302,224.20 = 118,400.78/x
  3. Step 3: Cross multiply
    219,002.78x = 302,224.20 × 118,400.78
  4. Step 4: Simplify right side
    219,002.78x = 35,783,581,014.88
  5. Step 5: Solve for x
    x = 35,783,581,014.88/219,002.78
  6. Step 6: Final answer
    x = 163,393.27

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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.