Home / 312,845.63-432,083.36-212,068.67

Finding the Fourth Proportional to 312,845.63, 432,083.36 and 212,068.67

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Solution

The fourth proportional to 312,845.63, 432,083.36 and 212,068.67 is: 292,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,845.63 : 432,083.36 = 212,068.67 : x
  2. Step 2: Convert to fraction form
    312,845.63/432,083.36 = 212,068.67/x
  3. Step 3: Cross multiply
    312,845.63x = 432,083.36 × 212,068.67
  4. Step 4: Simplify right side
    312,845.63x = 91,631,341,854.09
  5. Step 5: Solve for x
    x = 91,631,341,854.09/312,845.63
  6. Step 6: Final answer
    x = 292,896.35

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1.5x scale

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.