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Finding the Fourth Proportional to 219,108.63, 302,369.93 and 118,506.63

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Solution

The fourth proportional to 219,108.63, 302,369.93 and 118,506.63 is: 163,539.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,108.63 : 302,369.93 = 118,506.63 : x
  2. Step 2: Convert to fraction form
    219,108.63/302,369.93 = 118,506.63/x
  3. Step 3: Cross multiply
    219,108.63x = 302,369.93 × 118,506.63
  4. Step 4: Simplify right side
    219,108.63x = 35,832,841,417.64
  5. Step 5: Solve for x
    x = 35,832,841,417.64/219,108.63
  6. Step 6: Final answer
    x = 163,539.16

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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.