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Finding the Fourth Proportional to 330,482.41, 456,028.71 and 187,211.77

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Solution

The fourth proportional to 330,482.41, 456,028.71 and 187,211.77 is: 258,331.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,482.41 : 456,028.71 = 187,211.77 : x
  2. Step 2: Convert to fraction form
    330,482.41/456,028.71 = 187,211.77/x
  3. Step 3: Cross multiply
    330,482.41x = 456,028.71 × 187,211.77
  4. Step 4: Simplify right side
    330,482.41x = 85,373,941,969.92
  5. Step 5: Solve for x
    x = 85,373,941,969.92/330,482.41
  6. Step 6: Final answer
    x = 258,331.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.