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Finding the Fourth Proportional to 318,878.32, 440,052.04 and 175,638.36

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Solution

The fourth proportional to 318,878.32, 440,052.04 and 175,638.36 is: 242,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,878.32 : 440,052.04 = 175,638.36 : x
  2. Step 2: Convert to fraction form
    318,878.32/440,052.04 = 175,638.36/x
  3. Step 3: Cross multiply
    318,878.32x = 440,052.04 × 175,638.36
  4. Step 4: Simplify right side
    318,878.32x = 77,290,019,871.17
  5. Step 5: Solve for x
    x = 77,290,019,871.17/318,878.32
  6. Step 6: Final answer
    x = 242,380.92

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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.