Home / 310,441.08-428,444.08-172,633.65

Finding the Fourth Proportional to 310,441.08, 428,444.08 and 172,633.65

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Solution

The fourth proportional to 310,441.08, 428,444.08 and 172,633.65 is: 238,254.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,441.08 : 428,444.08 = 172,633.65 : x
  2. Step 2: Convert to fraction form
    310,441.08/428,444.08 = 172,633.65/x
  3. Step 3: Cross multiply
    310,441.08x = 428,444.08 × 172,633.65
  4. Step 4: Simplify right side
    310,441.08x = 73,963,867,899.10
  5. Step 5: Solve for x
    x = 73,963,867,899.10/310,441.08
  6. Step 6: Final answer
    x = 238,254.12

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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.