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Finding the Fourth Proportional to 385,280.70, 577,661.85 and 174,810.30

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Solution

The fourth proportional to 385,280.70, 577,661.85 and 174,810.30 is: 262,097.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,280.70 : 577,661.85 = 174,810.30 : x
  2. Step 2: Convert to fraction form
    385,280.70/577,661.85 = 174,810.30/x
  3. Step 3: Cross multiply
    385,280.70x = 577,661.85 × 174,810.30
  4. Step 4: Simplify right side
    385,280.70x = 100,981,241,297.06
  5. Step 5: Solve for x
    x = 100,981,241,297.06/385,280.70
  6. Step 6: Final answer
    x = 262,097.85

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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.