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Finding the Fourth Proportional to 330,247.79, 495,035.44 and 130,293.71

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Solution

The fourth proportional to 330,247.79, 495,035.44 and 130,293.71 is: 195,307.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,247.79 : 495,035.44 = 130,293.71 : x
  2. Step 2: Convert to fraction form
    330,247.79/495,035.44 = 130,293.71/x
  3. Step 3: Cross multiply
    330,247.79x = 495,035.44 × 130,293.71
  4. Step 4: Simplify right side
    330,247.79x = 64,500,004,059.08
  5. Step 5: Solve for x
    x = 64,500,004,059.08/330,247.79
  6. Step 6: Final answer
    x = 195,307.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.