Home / 230,320.50-317,852.16-128,346.10

Finding the Fourth Proportional to 230,320.50, 317,852.16 and 128,346.10

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Solution

The fourth proportional to 230,320.50, 317,852.16 and 128,346.10 is: 177,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,320.50 : 317,852.16 = 128,346.10 : x
  2. Step 2: Convert to fraction form
    230,320.50/317,852.16 = 128,346.10/x
  3. Step 3: Cross multiply
    230,320.50x = 317,852.16 × 128,346.10
  4. Step 4: Simplify right side
    230,320.50x = 40,795,085,112.58
  5. Step 5: Solve for x
    x = 40,795,085,112.58/230,320.50
  6. Step 6: Final answer
    x = 177,123.12

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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.