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Finding the Fourth Proportional to 313,602.74, 432,772.15 and 170,362.78

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Solution

The fourth proportional to 313,602.74, 432,772.15 and 170,362.78 is: 235,100.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,602.74 : 432,772.15 = 170,362.78 : x
  2. Step 2: Convert to fraction form
    313,602.74/432,772.15 = 170,362.78/x
  3. Step 3: Cross multiply
    313,602.74x = 432,772.15 × 170,362.78
  4. Step 4: Simplify right side
    313,602.74x = 73,728,266,580.58
  5. Step 5: Solve for x
    x = 73,728,266,580.58/313,602.74
  6. Step 6: Final answer
    x = 235,100.84

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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.