Home / 318,368.22-439,338.78-175,128.18

Finding the Fourth Proportional to 318,368.22, 439,338.78 and 175,128.18

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Solution

The fourth proportional to 318,368.22, 439,338.78 and 175,128.18 is: 241,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,368.22 : 439,338.78 = 175,128.18 : x
  2. Step 2: Convert to fraction form
    318,368.22/439,338.78 = 175,128.18/x
  3. Step 3: Cross multiply
    318,368.22x = 439,338.78 × 175,128.18
  4. Step 4: Simplify right side
    318,368.22x = 76,940,600,944.82
  5. Step 5: Solve for x
    x = 76,940,600,944.82/318,368.22
  6. Step 6: Final answer
    x = 241,671.74

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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.