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Finding the Fourth Proportional to 329,680.80, 454,830.72 and 215,094.24

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Solution

The fourth proportional to 329,680.80, 454,830.72 and 215,094.24 is: 296,746.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,680.80 : 454,830.72 = 215,094.24 : x
  2. Step 2: Convert to fraction form
    329,680.80/454,830.72 = 215,094.24/x
  3. Step 3: Cross multiply
    329,680.80x = 454,830.72 × 215,094.24
  4. Step 4: Simplify right side
    329,680.80x = 97,831,468,047.05
  5. Step 5: Solve for x
    x = 97,831,468,047.05/329,680.80
  6. Step 6: Final answer
    x = 296,746.03

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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.