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Finding the Fourth Proportional to 376,345.92, 519,437.88 and 225,530.40

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Solution

The fourth proportional to 376,345.92, 519,437.88 and 225,530.40 is: 311,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,345.92 : 519,437.88 = 225,530.40 : x
  2. Step 2: Convert to fraction form
    376,345.92/519,437.88 = 225,530.40/x
  3. Step 3: Cross multiply
    376,345.92x = 519,437.88 × 225,530.40
  4. Step 4: Simplify right side
    376,345.92x = 117,149,032,851.55
  5. Step 5: Solve for x
    x = 117,149,032,851.55/376,345.92
  6. Step 6: Final answer
    x = 311,280.20

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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.