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Finding the Fourth Proportional to 318,357.62, 439,348.29 and 175,115.06

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Solution

The fourth proportional to 318,357.62, 439,348.29 and 175,115.06 is: 241,666.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,357.62 : 439,348.29 = 175,115.06 : x
  2. Step 2: Convert to fraction form
    318,357.62/439,348.29 = 175,115.06/x
  3. Step 3: Cross multiply
    318,357.62x = 439,348.29 × 175,115.06
  4. Step 4: Simplify right side
    318,357.62x = 76,936,502,164.25
  5. Step 5: Solve for x
    x = 76,936,502,164.25/318,357.62
  6. Step 6: Final answer
    x = 241,666.91

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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.