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Finding the Fourth Proportional to 330,575.63, 456,381.71 and 252,905.15

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Solution

The fourth proportional to 330,575.63, 456,381.71 and 252,905.15 is: 349,152.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,575.63 : 456,381.71 = 252,905.15 : x
  2. Step 2: Convert to fraction form
    330,575.63/456,381.71 = 252,905.15/x
  3. Step 3: Cross multiply
    330,575.63x = 456,381.71 × 252,905.15
  4. Step 4: Simplify right side
    330,575.63x = 115,421,281,278.37
  5. Step 5: Solve for x
    x = 115,421,281,278.37/330,575.63
  6. Step 6: Final answer
    x = 349,152.43

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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.