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Finding the Fourth Proportional to 331,041.32, 456,767.82 and 216,487.88

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Solution

The fourth proportional to 331,041.32, 456,767.82 and 216,487.88 is: 298,708.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,041.32 : 456,767.82 = 216,487.88 : x
  2. Step 2: Convert to fraction form
    331,041.32/456,767.82 = 216,487.88/x
  3. Step 3: Cross multiply
    331,041.32x = 456,767.82 × 216,487.88
  4. Step 4: Simplify right side
    331,041.32x = 98,884,697,004.02
  5. Step 5: Solve for x
    x = 98,884,697,004.02/331,041.32
  6. Step 6: Final answer
    x = 298,708.02

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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.