Home / 230,003.48-317,401.40-128,028.79

Finding the Fourth Proportional to 230,003.48, 317,401.40 and 128,028.79

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Solution

The fourth proportional to 230,003.48, 317,401.40 and 128,028.79 is: 176,677.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,003.48 : 317,401.40 = 128,028.79 : x
  2. Step 2: Convert to fraction form
    230,003.48/317,401.40 = 128,028.79/x
  3. Step 3: Cross multiply
    230,003.48x = 317,401.40 × 128,028.79
  4. Step 4: Simplify right side
    230,003.48x = 40,636,514,959.16
  5. Step 5: Solve for x
    x = 40,636,514,959.16/230,003.48
  6. Step 6: Final answer
    x = 176,677.83

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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.