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Finding the Fourth Proportional to 280,364.08, 420,552.08 and 100,461.24

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Solution

The fourth proportional to 280,364.08, 420,552.08 and 100,461.24 is: 150,694.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,364.08 : 420,552.08 = 100,461.24 : x
  2. Step 2: Convert to fraction form
    280,364.08/420,552.08 = 100,461.24/x
  3. Step 3: Cross multiply
    280,364.08x = 420,552.08 × 100,461.24
  4. Step 4: Simplify right side
    280,364.08x = 42,249,183,441.38
  5. Step 5: Solve for x
    x = 42,249,183,441.38/280,364.08
  6. Step 6: Final answer
    x = 150,694.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.