Home / 318,579.38-439,636.21-175,336.35

Finding the Fourth Proportional to 318,579.38, 439,636.21 and 175,336.35

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Solution

The fourth proportional to 318,579.38, 439,636.21 and 175,336.35 is: 241,962.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,579.38 : 439,636.21 = 175,336.35 : x
  2. Step 2: Convert to fraction form
    318,579.38/439,636.21 = 175,336.35/x
  3. Step 3: Cross multiply
    318,579.38x = 439,636.21 × 175,336.35
  4. Step 4: Simplify right side
    318,579.38x = 77,084,206,302.26
  5. Step 5: Solve for x
    x = 77,084,206,302.26/318,579.38
  6. Step 6: Final answer
    x = 241,962.32

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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.