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Finding the Fourth Proportional to 330,200.40, 495,300.60 and 130,417.95

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Solution

The fourth proportional to 330,200.40, 495,300.60 and 130,417.95 is: 195,626.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,200.40 : 495,300.60 = 130,417.95 : x
  2. Step 2: Convert to fraction form
    330,200.40/495,300.60 = 130,417.95/x
  3. Step 3: Cross multiply
    330,200.40x = 495,300.60 × 130,417.95
  4. Step 4: Simplify right side
    330,200.40x = 64,596,088,885.77
  5. Step 5: Solve for x
    x = 64,596,088,885.77/330,200.40
  6. Step 6: Final answer
    x = 195,626.93

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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.