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Finding the Fourth Proportional to 219,012.92, 302,238.28 and 118,410.92

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Solution

The fourth proportional to 219,012.92, 302,238.28 and 118,410.92 is: 163,407.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,012.92 : 302,238.28 = 118,410.92 : x
  2. Step 2: Convert to fraction form
    219,012.92/302,238.28 = 118,410.92/x
  3. Step 3: Cross multiply
    219,012.92x = 302,238.28 × 118,410.92
  4. Step 4: Simplify right side
    219,012.92x = 35,788,312,794.02
  5. Step 5: Solve for x
    x = 35,788,312,794.02/219,012.92
  6. Step 6: Final answer
    x = 163,407.31

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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.