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Finding the Fourth Proportional to 216,749.61, 299,100.66 and 118,612.95

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Solution

The fourth proportional to 216,749.61, 299,100.66 and 118,612.95 is: 163,678.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,749.61 : 299,100.66 = 118,612.95 : x
  2. Step 2: Convert to fraction form
    216,749.61/299,100.66 = 118,612.95/x
  3. Step 3: Cross multiply
    216,749.61x = 299,100.66 × 118,612.95
  4. Step 4: Simplify right side
    216,749.61x = 35,477,211,629.55
  5. Step 5: Solve for x
    x = 35,477,211,629.55/216,749.61
  6. Step 6: Final answer
    x = 163,678.32

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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.