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Finding the Fourth Proportional to 310,595.77, 465,803.62 and 121,013.88

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Solution

The fourth proportional to 310,595.77, 465,803.62 and 121,013.88 is: 181,485.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,595.77 : 465,803.62 = 121,013.88 : x
  2. Step 2: Convert to fraction form
    310,595.77/465,803.62 = 121,013.88/x
  3. Step 3: Cross multiply
    310,595.77x = 465,803.62 × 121,013.88
  4. Step 4: Simplify right side
    310,595.77x = 56,368,701,324.95
  5. Step 5: Solve for x
    x = 56,368,701,324.95/310,595.77
  6. Step 6: Final answer
    x = 181,485.73

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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.