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Finding the Fourth Proportional to 318,987.89, 440,203.05 and 175,747.94

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Solution

The fourth proportional to 318,987.89, 440,203.05 and 175,747.94 is: 242,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,987.89 : 440,203.05 = 175,747.94 : x
  2. Step 2: Convert to fraction form
    318,987.89/440,203.05 = 175,747.94/x
  3. Step 3: Cross multiply
    318,987.89x = 440,203.05 × 175,747.94
  4. Step 4: Simplify right side
    318,987.89x = 77,364,779,219.22
  5. Step 5: Solve for x
    x = 77,364,779,219.22/318,987.89
  6. Step 6: Final answer
    x = 242,532.03

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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.