Home / 347,631.64-521,503.86-107,689.48

Finding the Fourth Proportional to 347,631.64, 521,503.86 and 107,689.48

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Solution

The fourth proportional to 347,631.64, 521,503.86 and 107,689.48 is: 161,551.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,631.64 : 521,503.86 = 107,689.48 : x
  2. Step 2: Convert to fraction form
    347,631.64/521,503.86 = 107,689.48/x
  3. Step 3: Cross multiply
    347,631.64x = 521,503.86 × 107,689.48
  4. Step 4: Simplify right side
    347,631.64x = 56,160,479,501.39
  5. Step 5: Solve for x
    x = 56,160,479,501.39/347,631.64
  6. Step 6: Final answer
    x = 161,551.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.