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Finding the Fourth Proportional to 219,009.66, 302,233.78 and 118,407.66

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Solution

The fourth proportional to 219,009.66, 302,233.78 and 118,407.66 is: 163,402.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,009.66 : 302,233.78 = 118,407.66 : x
  2. Step 2: Convert to fraction form
    219,009.66/302,233.78 = 118,407.66/x
  3. Step 3: Cross multiply
    219,009.66x = 302,233.78 × 118,407.66
  4. Step 4: Simplify right side
    219,009.66x = 35,786,793,677.39
  5. Step 5: Solve for x
    x = 35,786,793,677.39/219,009.66
  6. Step 6: Final answer
    x = 163,402.81

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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.