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Finding the Fourth Proportional to 377,189.37, 520,521.48 and 207,423.45

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Solution

The fourth proportional to 377,189.37, 520,521.48 and 207,423.45 is: 286,244.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,189.37 : 520,521.48 = 207,423.45 : x
  2. Step 2: Convert to fraction form
    377,189.37/520,521.48 = 207,423.45/x
  3. Step 3: Cross multiply
    377,189.37x = 520,521.48 × 207,423.45
  4. Step 4: Simplify right side
    377,189.37x = 107,968,361,180.71
  5. Step 5: Solve for x
    x = 107,968,361,180.71/377,189.37
  6. Step 6: Final answer
    x = 286,244.44

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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.