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Finding the Fourth Proportional to 377,328.32, 520,710.36 and 207,558.80

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Solution

The fourth proportional to 377,328.32, 520,710.36 and 207,558.80 is: 286,429.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,328.32 : 520,710.36 = 207,558.80 : x
  2. Step 2: Convert to fraction form
    377,328.32/520,710.36 = 207,558.80/x
  3. Step 3: Cross multiply
    377,328.32x = 520,710.36 × 207,558.80
  4. Step 4: Simplify right side
    377,328.32x = 108,078,017,469.17
  5. Step 5: Solve for x
    x = 108,078,017,469.17/377,328.32
  6. Step 6: Final answer
    x = 286,429.65

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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.