Home / 318,771.95-439,905.27-175,531.64

Finding the Fourth Proportional to 318,771.95, 439,905.27 and 175,531.64

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Solution

The fourth proportional to 318,771.95, 439,905.27 and 175,531.64 is: 242,233.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,771.95 : 439,905.27 = 175,531.64 : x
  2. Step 2: Convert to fraction form
    318,771.95/439,905.27 = 175,531.64/x
  3. Step 3: Cross multiply
    318,771.95x = 439,905.27 × 175,531.64
  4. Step 4: Simplify right side
    318,771.95x = 77,217,291,288.22
  5. Step 5: Solve for x
    x = 77,217,291,288.22/318,771.95
  6. Step 6: Final answer
    x = 242,233.65

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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.