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Finding the Fourth Proportional to 219,308.20, 302,645.28 and 118,706.20

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Solution

The fourth proportional to 219,308.20, 302,645.28 and 118,706.20 is: 163,814.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,308.20 : 302,645.28 = 118,706.20 : x
  2. Step 2: Convert to fraction form
    219,308.20/302,645.28 = 118,706.20/x
  3. Step 3: Cross multiply
    219,308.20x = 302,645.28 × 118,706.20
  4. Step 4: Simplify right side
    219,308.20x = 35,925,871,136.74
  5. Step 5: Solve for x
    x = 35,925,871,136.74/219,308.20
  6. Step 6: Final answer
    x = 163,814.54

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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.