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Finding the Fourth Proportional to 377,442.18, 520,884.54 and 216,328.32

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Solution

The fourth proportional to 377,442.18, 520,884.54 and 216,328.32 is: 298,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,442.18 : 520,884.54 = 216,328.32 : x
  2. Step 2: Convert to fraction form
    377,442.18/520,884.54 = 216,328.32/x
  3. Step 3: Cross multiply
    377,442.18x = 520,884.54 × 216,328.32
  4. Step 4: Simplify right side
    377,442.18x = 112,682,077,452.17
  5. Step 5: Solve for x
    x = 112,682,077,452.17/377,442.18
  6. Step 6: Final answer
    x = 298,541.30

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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.