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Finding the Fourth Proportional to 330,313.48, 495,456.55 and 105,686.71

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Solution

The fourth proportional to 330,313.48, 495,456.55 and 105,686.71 is: 158,525.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,313.48 : 495,456.55 = 105,686.71 : x
  2. Step 2: Convert to fraction form
    330,313.48/495,456.55 = 105,686.71/x
  3. Step 3: Cross multiply
    330,313.48x = 495,456.55 × 105,686.71
  4. Step 4: Simplify right side
    330,313.48x = 52,363,171,214.59
  5. Step 5: Solve for x
    x = 52,363,171,214.59/330,313.48
  6. Step 6: Final answer
    x = 158,525.69

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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.