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Finding the Fourth Proportional to 280,551.36, 420,925.32 and 175,247.04

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Solution

The fourth proportional to 280,551.36, 420,925.32 and 175,247.04 is: 262,931.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,551.36 : 420,925.32 = 175,247.04 : x
  2. Step 2: Convert to fraction form
    280,551.36/420,925.32 = 175,247.04/x
  3. Step 3: Cross multiply
    280,551.36x = 420,925.32 × 175,247.04
  4. Step 4: Simplify right side
    280,551.36x = 73,765,916,391.05
  5. Step 5: Solve for x
    x = 73,765,916,391.05/280,551.36
  6. Step 6: Final answer
    x = 262,931.95

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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.