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Finding the Fourth Proportional to 313,415.33, 432,501.02 and 170,172.09

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Solution

The fourth proportional to 313,415.33, 432,501.02 and 170,172.09 is: 234,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,415.33 : 432,501.02 = 170,172.09 : x
  2. Step 2: Convert to fraction form
    313,415.33/432,501.02 = 170,172.09/x
  3. Step 3: Cross multiply
    313,415.33x = 432,501.02 × 170,172.09
  4. Step 4: Simplify right side
    313,415.33x = 73,599,602,287.82
  5. Step 5: Solve for x
    x = 73,599,602,287.82/313,415.33
  6. Step 6: Final answer
    x = 234,830.90

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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.