Home / 219,120.75-302,387.19-118,518.75

Finding the Fourth Proportional to 219,120.75, 302,387.19 and 118,518.75

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Solution

The fourth proportional to 219,120.75, 302,387.19 and 118,518.75 is: 163,556.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,120.75 : 302,387.19 = 118,518.75 : x
  2. Step 2: Convert to fraction form
    219,120.75/302,387.19 = 118,518.75/x
  3. Step 3: Cross multiply
    219,120.75x = 302,387.19 × 118,518.75
  4. Step 4: Simplify right side
    219,120.75x = 35,838,551,774.81
  5. Step 5: Solve for x
    x = 35,838,551,774.81/219,120.75
  6. Step 6: Final answer
    x = 163,556.18

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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.