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Finding the Fourth Proportional to 377,076.42, 520,477.65 and 216,038.70

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Solution

The fourth proportional to 377,076.42, 520,477.65 and 216,038.70 is: 298,197.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,076.42 : 520,477.65 = 216,038.70 : x
  2. Step 2: Convert to fraction form
    377,076.42/520,477.65 = 216,038.70/x
  3. Step 3: Cross multiply
    377,076.42x = 520,477.65 × 216,038.70
  4. Step 4: Simplify right side
    377,076.42x = 112,443,314,885.06
  5. Step 5: Solve for x
    x = 112,443,314,885.06/377,076.42
  6. Step 6: Final answer
    x = 298,197.68

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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.