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Finding the Fourth Proportional to 225,079.35, 310,574.99 and 129,567.59

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Solution

The fourth proportional to 225,079.35, 310,574.99 and 129,567.59 is: 178,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,079.35 : 310,574.99 = 129,567.59 : x
  2. Step 2: Convert to fraction form
    225,079.35/310,574.99 = 129,567.59/x
  3. Step 3: Cross multiply
    225,079.35x = 310,574.99 × 129,567.59
  4. Step 4: Simplify right side
    225,079.35x = 40,240,451,415.70
  5. Step 5: Solve for x
    x = 40,240,451,415.70/225,079.35
  6. Step 6: Final answer
    x = 178,783.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.