Home / 280,639.24-420,962.46-93,650.74

Finding the Fourth Proportional to 280,639.24, 420,962.46 and 93,650.74

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Solution

The fourth proportional to 280,639.24, 420,962.46 and 93,650.74 is: 140,477.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,639.24 : 420,962.46 = 93,650.74 : x
  2. Step 2: Convert to fraction form
    280,639.24/420,962.46 = 93,650.74/x
  3. Step 3: Cross multiply
    280,639.24x = 420,962.46 × 93,650.74
  4. Step 4: Simplify right side
    280,639.24x = 39,423,445,891.22
  5. Step 5: Solve for x
    x = 39,423,445,891.22/280,639.24
  6. Step 6: Final answer
    x = 140,477.31

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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.