Home / 230,014.80-317,440.35-128,076.30

Finding the Fourth Proportional to 230,014.80, 317,440.35 and 128,076.30

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Solution

The fourth proportional to 230,014.80, 317,440.35 and 128,076.30 is: 176,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,014.80 : 317,440.35 = 128,076.30 : x
  2. Step 2: Convert to fraction form
    230,014.80/317,440.35 = 128,076.30/x
  3. Step 3: Cross multiply
    230,014.80x = 317,440.35 × 128,076.30
  4. Step 4: Simplify right side
    230,014.80x = 40,656,585,498.71
  5. Step 5: Solve for x
    x = 40,656,585,498.71/230,014.80
  6. Step 6: Final answer
    x = 176,756.39

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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.