Home / 310,826.88-428,937-174,860.40

Finding the Fourth Proportional to 310,826.88, 428,937 and 174,860.40

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Solution

The fourth proportional to 310,826.88, 428,937 and 174,860.40 is: 241,305.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,826.88 : 428,937 = 174,860.40 : x
  2. Step 2: Convert to fraction form
    310,826.88/428,937 = 174,860.40/x
  3. Step 3: Cross multiply
    310,826.88x = 428,937 × 174,860.40
  4. Step 4: Simplify right side
    310,826.88x = 75,004,095,394.80
  5. Step 5: Solve for x
    x = 75,004,095,394.80/310,826.88
  6. Step 6: Final answer
    x = 241,305.05

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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.