Home / 219,115.39-302,379.24-118,513.39

Finding the Fourth Proportional to 219,115.39, 302,379.24 and 118,513.39

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Solution

The fourth proportional to 219,115.39, 302,379.24 and 118,513.39 is: 163,548.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,115.39 : 302,379.24 = 118,513.39 : x
  2. Step 2: Convert to fraction form
    219,115.39/302,379.24 = 118,513.39/x
  3. Step 3: Cross multiply
    219,115.39x = 302,379.24 × 118,513.39
  4. Step 4: Simplify right side
    219,115.39x = 35,835,988,798.02
  5. Step 5: Solve for x
    x = 35,835,988,798.02/219,115.39
  6. Step 6: Final answer
    x = 163,548.48

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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.