Home / 219,117.39-302,382-118,515.39

Finding the Fourth Proportional to 219,117.39, 302,382 and 118,515.39

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Solution

The fourth proportional to 219,117.39, 302,382 and 118,515.39 is: 163,551.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,117.39 : 302,382 = 118,515.39 : x
  2. Step 2: Convert to fraction form
    219,117.39/302,382 = 118,515.39/x
  3. Step 3: Cross multiply
    219,117.39x = 302,382 × 118,515.39
  4. Step 4: Simplify right side
    219,117.39x = 35,836,920,658.98
  5. Step 5: Solve for x
    x = 35,836,920,658.98/219,117.39
  6. Step 6: Final answer
    x = 163,551.24

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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.