Home / 229,816.48-317,158.80-129,220.96

Finding the Fourth Proportional to 229,816.48, 317,158.80 and 129,220.96

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Solution

The fourth proportional to 229,816.48, 317,158.80 and 129,220.96 is: 178,331.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,816.48 : 317,158.80 = 129,220.96 : x
  2. Step 2: Convert to fraction form
    229,816.48/317,158.80 = 129,220.96/x
  3. Step 3: Cross multiply
    229,816.48x = 317,158.80 × 129,220.96
  4. Step 4: Simplify right side
    229,816.48x = 40,983,564,608.45
  5. Step 5: Solve for x
    x = 40,983,564,608.45/229,816.48
  6. Step 6: Final answer
    x = 178,331.70

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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.