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Finding the Fourth Proportional to 219,409.22, 302,784.72 and 118,807.22

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Solution

The fourth proportional to 219,409.22, 302,784.72 and 118,807.22 is: 163,953.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,409.22 : 302,784.72 = 118,807.22 : x
  2. Step 2: Convert to fraction form
    219,409.22/302,784.72 = 118,807.22/x
  3. Step 3: Cross multiply
    219,409.22x = 302,784.72 × 118,807.22
  4. Step 4: Simplify right side
    219,409.22x = 35,973,009,327.75
  5. Step 5: Solve for x
    x = 35,973,009,327.75/219,409.22
  6. Step 6: Final answer
    x = 163,953.96

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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.