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Finding the Fourth Proportional to 330,683.63, 495,935.33 and 90,740.63

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Solution

The fourth proportional to 330,683.63, 495,935.33 and 90,740.63 is: 136,086.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,683.63 : 495,935.33 = 90,740.63 : x
  2. Step 2: Convert to fraction form
    330,683.63/495,935.33 = 90,740.63/x
  3. Step 3: Cross multiply
    330,683.63x = 495,935.33 × 90,740.63
  4. Step 4: Simplify right side
    330,683.63x = 45,001,484,283.46
  5. Step 5: Solve for x
    x = 45,001,484,283.46/330,683.63
  6. Step 6: Final answer
    x = 136,086.22

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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.