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Finding the Fourth Proportional to 219,013.66, 302,239.29 and 118,411.66

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Solution

The fourth proportional to 219,013.66, 302,239.29 and 118,411.66 is: 163,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,013.66 : 302,239.29 = 118,411.66 : x
  2. Step 2: Convert to fraction form
    219,013.66/302,239.29 = 118,411.66/x
  3. Step 3: Cross multiply
    219,013.66x = 302,239.29 × 118,411.66
  4. Step 4: Simplify right side
    219,013.66x = 35,788,656,046.12
  5. Step 5: Solve for x
    x = 35,788,656,046.12/219,013.66
  6. Step 6: Final answer
    x = 163,408.33

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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.