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Finding the Fourth Proportional to 379,557.56, 569,336.34 and 99,075.08

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Solution

The fourth proportional to 379,557.56, 569,336.34 and 99,075.08 is: 148,612.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,557.56 : 569,336.34 = 99,075.08 : x
  2. Step 2: Convert to fraction form
    379,557.56/569,336.34 = 99,075.08/x
  3. Step 3: Cross multiply
    379,557.56x = 569,336.34 × 99,075.08
  4. Step 4: Simplify right side
    379,557.56x = 56,407,043,432.41
  5. Step 5: Solve for x
    x = 56,407,043,432.41/379,557.56
  6. Step 6: Final answer
    x = 148,612.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.