Home / 356,918.72-534,326.20-312,631.96

Finding the Fourth Proportional to 356,918.72, 534,326.20 and 312,631.96

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Solution

The fourth proportional to 356,918.72, 534,326.20 and 312,631.96 is: 468,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,918.72 : 534,326.20 = 312,631.96 : x
  2. Step 2: Convert to fraction form
    356,918.72/534,326.20 = 312,631.96/x
  3. Step 3: Cross multiply
    356,918.72x = 534,326.20 × 312,631.96
  4. Step 4: Simplify right side
    356,918.72x = 167,047,447,185.35
  5. Step 5: Solve for x
    x = 167,047,447,185.35/356,918.72
  6. Step 6: Final answer
    x = 468,026.58

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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.