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Finding the Fourth Proportional to 313,220.63, 432,244.77 and 169,980.71

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Solution

The fourth proportional to 313,220.63, 432,244.77 and 169,980.71 is: 234,573.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,220.63 : 432,244.77 = 169,980.71 : x
  2. Step 2: Convert to fraction form
    313,220.63/432,244.77 = 169,980.71/x
  3. Step 3: Cross multiply
    313,220.63x = 432,244.77 × 169,980.71
  4. Step 4: Simplify right side
    313,220.63x = 73,473,270,737.16
  5. Step 5: Solve for x
    x = 73,473,270,737.16/313,220.63
  6. Step 6: Final answer
    x = 234,573.54

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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.