Home / 219,290.10-302,620.31-118,688.10

Finding the Fourth Proportional to 219,290.10, 302,620.31 and 118,688.10

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Solution

The fourth proportional to 219,290.10, 302,620.31 and 118,688.10 is: 163,789.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,290.10 : 302,620.31 = 118,688.10 : x
  2. Step 2: Convert to fraction form
    219,290.10/302,620.31 = 118,688.10/x
  3. Step 3: Cross multiply
    219,290.10x = 302,620.31 × 118,688.10
  4. Step 4: Simplify right side
    219,290.10x = 35,917,429,615.31
  5. Step 5: Solve for x
    x = 35,917,429,615.31/219,290.10
  6. Step 6: Final answer
    x = 163,789.56

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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.