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Finding the Fourth Proportional to 385,305.60, 578,048.64 and 160,812.80

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Solution

The fourth proportional to 385,305.60, 578,048.64 and 160,812.80 is: 241,256.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,305.60 : 578,048.64 = 160,812.80 : x
  2. Step 2: Convert to fraction form
    385,305.60/578,048.64 = 160,812.80/x
  3. Step 3: Cross multiply
    385,305.60x = 578,048.64 × 160,812.80
  4. Step 4: Simplify right side
    385,305.60x = 92,957,620,334.59
  5. Step 5: Solve for x
    x = 92,957,620,334.59/385,305.60
  6. Step 6: Final answer
    x = 241,256.86

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1.5x scale

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.