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Finding the Fourth Proportional to 388,102.37, 535,354.25 and 252,226.80

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Solution

The fourth proportional to 388,102.37, 535,354.25 and 252,226.80 is: 347,925.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,102.37 : 535,354.25 = 252,226.80 : x
  2. Step 2: Convert to fraction form
    388,102.37/535,354.25 = 252,226.80/x
  3. Step 3: Cross multiply
    388,102.37x = 535,354.25 × 252,226.80
  4. Step 4: Simplify right side
    388,102.37x = 135,030,688,082.77
  5. Step 5: Solve for x
    x = 135,030,688,082.77/388,102.37
  6. Step 6: Final answer
    x = 347,925.45

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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.