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Finding the Fourth Proportional to 331,312.32, 457,216.32 and 180,409.28

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Solution

The fourth proportional to 331,312.32, 457,216.32 and 180,409.28 is: 248,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,312.32 : 457,216.32 = 180,409.28 : x
  2. Step 2: Convert to fraction form
    331,312.32/457,216.32 = 180,409.28/x
  3. Step 3: Cross multiply
    331,312.32x = 457,216.32 × 180,409.28
  4. Step 4: Simplify right side
    331,312.32x = 82,486,067,095.45
  5. Step 5: Solve for x
    x = 82,486,067,095.45/331,312.32
  6. Step 6: Final answer
    x = 248,967.70

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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.