Home / 280,839.69-421,259.53-93,851.19

Finding the Fourth Proportional to 280,839.69, 421,259.53 and 93,851.19

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Solution

The fourth proportional to 280,839.69, 421,259.53 and 93,851.19 is: 140,776.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,839.69 : 421,259.53 = 93,851.19 : x
  2. Step 2: Convert to fraction form
    280,839.69/421,259.53 = 93,851.19/x
  3. Step 3: Cross multiply
    280,839.69x = 421,259.53 × 93,851.19
  4. Step 4: Simplify right side
    280,839.69x = 39,535,708,189.34
  5. Step 5: Solve for x
    x = 39,535,708,189.34/280,839.69
  6. Step 6: Final answer
    x = 140,776.78

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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.