Home / 280,535.72-420,807.20-93,547.16

Finding the Fourth Proportional to 280,535.72, 420,807.20 and 93,547.16

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Solution

The fourth proportional to 280,535.72, 420,807.20 and 93,547.16 is: 140,321.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,535.72 : 420,807.20 = 93,547.16 : x
  2. Step 2: Convert to fraction form
    280,535.72/420,807.20 = 93,547.16/x
  3. Step 3: Cross multiply
    280,535.72x = 420,807.20 × 93,547.16
  4. Step 4: Simplify right side
    280,535.72x = 39,365,318,467.55
  5. Step 5: Solve for x
    x = 39,365,318,467.55/280,535.72
  6. Step 6: Final answer
    x = 140,321.95

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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.