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Finding the Fourth Proportional to 219,012.66, 302,237.91 and 118,410.66

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Solution

The fourth proportional to 219,012.66, 302,237.91 and 118,410.66 is: 163,406.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,012.66 : 302,237.91 = 118,410.66 : x
  2. Step 2: Convert to fraction form
    219,012.66/302,237.91 = 118,410.66/x
  3. Step 3: Cross multiply
    219,012.66x = 302,237.91 × 118,410.66
  4. Step 4: Simplify right side
    219,012.66x = 35,788,190,400.12
  5. Step 5: Solve for x
    x = 35,788,190,400.12/219,012.66
  6. Step 6: Final answer
    x = 163,406.95

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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.