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Finding the Fourth Proportional to 216,693.53, 299,035.35 and 121,200.15

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Solution

The fourth proportional to 216,693.53, 299,035.35 and 121,200.15 is: 167,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,693.53 : 299,035.35 = 121,200.15 : x
  2. Step 2: Convert to fraction form
    216,693.53/299,035.35 = 121,200.15/x
  3. Step 3: Cross multiply
    216,693.53x = 299,035.35 × 121,200.15
  4. Step 4: Simplify right side
    216,693.53x = 36,243,129,275.30
  5. Step 5: Solve for x
    x = 36,243,129,275.30/216,693.53
  6. Step 6: Final answer
    x = 167,255.25

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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.