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Finding the Fourth Proportional to 313,279.92, 432,314.71 and 170,036.91

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Solution

The fourth proportional to 313,279.92, 432,314.71 and 170,036.91 is: 234,644.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,279.92 : 432,314.71 = 170,036.91 : x
  2. Step 2: Convert to fraction form
    313,279.92/432,314.71 = 170,036.91/x
  3. Step 3: Cross multiply
    313,279.92x = 432,314.71 × 170,036.91
  4. Step 4: Simplify right side
    313,279.92x = 73,509,457,010.85
  5. Step 5: Solve for x
    x = 73,509,457,010.85/313,279.92
  6. Step 6: Final answer
    x = 234,644.65

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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.