Home / 318,428.03-439,430.67-175,185

Finding the Fourth Proportional to 318,428.03, 439,430.67 and 175,185

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Solution

The fourth proportional to 318,428.03, 439,430.67 and 175,185 is: 241,755.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,428.03 : 439,430.67 = 175,185 : x
  2. Step 2: Convert to fraction form
    318,428.03/439,430.67 = 175,185/x
  3. Step 3: Cross multiply
    318,428.03x = 439,430.67 × 175,185
  4. Step 4: Simplify right side
    318,428.03x = 76,981,661,923.95
  5. Step 5: Solve for x
    x = 76,981,661,923.95/318,428.03
  6. Step 6: Final answer
    x = 241,755.29

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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.