Home / 291,537.12-402,421.86-170,717.25

Finding the Fourth Proportional to 291,537.12, 402,421.86 and 170,717.25

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Solution

The fourth proportional to 291,537.12, 402,421.86 and 170,717.25 is: 235,648.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,537.12 : 402,421.86 = 170,717.25 : x
  2. Step 2: Convert to fraction form
    291,537.12/402,421.86 = 170,717.25/x
  3. Step 3: Cross multiply
    291,537.12x = 402,421.86 × 170,717.25
  4. Step 4: Simplify right side
    291,537.12x = 68,700,353,279.09
  5. Step 5: Solve for x
    x = 68,700,353,279.09/291,537.12
  6. Step 6: Final answer
    x = 235,648.73

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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.