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Finding the Fourth Proportional to 313,416.94, 432,515.37 and 179,280.94

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Solution

The fourth proportional to 313,416.94, 432,515.37 and 179,280.94 is: 247,407.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,416.94 : 432,515.37 = 179,280.94 : x
  2. Step 2: Convert to fraction form
    313,416.94/432,515.37 = 179,280.94/x
  3. Step 3: Cross multiply
    313,416.94x = 432,515.37 × 179,280.94
  4. Step 4: Simplify right side
    313,416.94x = 77,541,761,689.06
  5. Step 5: Solve for x
    x = 77,541,761,689.06/313,416.94
  6. Step 6: Final answer
    x = 247,407.69

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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.