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Finding the Fourth Proportional to 310,005.36, 465,037.47 and 120,480.38

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Solution

The fourth proportional to 310,005.36, 465,037.47 and 120,480.38 is: 180,732.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,005.36 : 465,037.47 = 120,480.38 : x
  2. Step 2: Convert to fraction form
    310,005.36/465,037.47 = 120,480.38/x
  3. Step 3: Cross multiply
    310,005.36x = 465,037.47 × 120,480.38
  4. Step 4: Simplify right side
    310,005.36x = 56,027,890,518.54
  5. Step 5: Solve for x
    x = 56,027,890,518.54/310,005.36
  6. Step 6: Final answer
    x = 180,732.01

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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.