Home / 312,783.12-469,207.49-102,437.46

Finding the Fourth Proportional to 312,783.12, 469,207.49 and 102,437.46

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Solution

The fourth proportional to 312,783.12, 469,207.49 and 102,437.46 is: 153,666.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,783.12 : 469,207.49 = 102,437.46 : x
  2. Step 2: Convert to fraction form
    312,783.12/469,207.49 = 102,437.46/x
  3. Step 3: Cross multiply
    312,783.12x = 469,207.49 × 102,437.46
  4. Step 4: Simplify right side
    312,783.12x = 48,064,422,976.39
  5. Step 5: Solve for x
    x = 48,064,422,976.39/312,783.12
  6. Step 6: Final answer
    x = 153,666.93

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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.