Home / 280,584.19-420,876.29-70,222.13

Finding the Fourth Proportional to 280,584.19, 420,876.29 and 70,222.13

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Solution

The fourth proportional to 280,584.19, 420,876.29 and 70,222.13 is: 105,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,584.19 : 420,876.29 = 70,222.13 : x
  2. Step 2: Convert to fraction form
    280,584.19/420,876.29 = 70,222.13/x
  3. Step 3: Cross multiply
    280,584.19x = 420,876.29 × 70,222.13
  4. Step 4: Simplify right side
    280,584.19x = 29,554,829,550.30
  5. Step 5: Solve for x
    x = 29,554,829,550.30/280,584.19
  6. Step 6: Final answer
    x = 105,333.20

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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.