Home / 516,867.84-775,316.32-142,890.80

Finding the Fourth Proportional to 516,867.84, 775,316.32 and 142,890.80

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Solution

The fourth proportional to 516,867.84, 775,316.32 and 142,890.80 is: 214,340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,867.84 : 775,316.32 = 142,890.80 : x
  2. Step 2: Convert to fraction form
    516,867.84/775,316.32 = 142,890.80/x
  3. Step 3: Cross multiply
    516,867.84x = 775,316.32 × 142,890.80
  4. Step 4: Simplify right side
    516,867.84x = 110,785,569,217.86
  5. Step 5: Solve for x
    x = 110,785,569,217.86/516,867.84
  6. Step 6: Final answer
    x = 214,340.23

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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.