Home / 312,541.77-431,282.01-176,587.50

Finding the Fourth Proportional to 312,541.77, 431,282.01 and 176,587.50

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Solution

The fourth proportional to 312,541.77, 431,282.01 and 176,587.50 is: 243,676.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,541.77 : 431,282.01 = 176,587.50 : x
  2. Step 2: Convert to fraction form
    312,541.77/431,282.01 = 176,587.50/x
  3. Step 3: Cross multiply
    312,541.77x = 431,282.01 × 176,587.50
  4. Step 4: Simplify right side
    312,541.77x = 76,159,011,940.88
  5. Step 5: Solve for x
    x = 76,159,011,940.88/312,541.77
  6. Step 6: Final answer
    x = 243,676.27

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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.