Home / 309,834.24-427,570.04-173,867.84

Finding the Fourth Proportional to 309,834.24, 427,570.04 and 173,867.84

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Solution

The fourth proportional to 309,834.24, 427,570.04 and 173,867.84 is: 239,936.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,834.24 : 427,570.04 = 173,867.84 : x
  2. Step 2: Convert to fraction form
    309,834.24/427,570.04 = 173,867.84/x
  3. Step 3: Cross multiply
    309,834.24x = 427,570.04 × 173,867.84
  4. Step 4: Simplify right side
    309,834.24x = 74,340,679,303.51
  5. Step 5: Solve for x
    x = 74,340,679,303.51/309,834.24
  6. Step 6: Final answer
    x = 239,936.94

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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.