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Finding the Fourth Proportional to 219,283.80, 302,611.62 and 118,681.80

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Solution

The fourth proportional to 219,283.80, 302,611.62 and 118,681.80 is: 163,780.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,283.80 : 302,611.62 = 118,681.80 : x
  2. Step 2: Convert to fraction form
    219,283.80/302,611.62 = 118,681.80/x
  3. Step 3: Cross multiply
    219,283.80x = 302,611.62 × 118,681.80
  4. Step 4: Simplify right side
    219,283.80x = 35,914,491,762.52
  5. Step 5: Solve for x
    x = 35,914,491,762.52/219,283.80
  6. Step 6: Final answer
    x = 163,780.87

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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.