Home / 229,968.48-317,085-157,406.28

Finding the Fourth Proportional to 229,968.48, 317,085 and 157,406.28

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Solution

The fourth proportional to 229,968.48, 317,085 and 157,406.28 is: 217,034.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,968.48 : 317,085 = 157,406.28 : x
  2. Step 2: Convert to fraction form
    229,968.48/317,085 = 157,406.28/x
  3. Step 3: Cross multiply
    229,968.48x = 317,085 × 157,406.28
  4. Step 4: Simplify right side
    229,968.48x = 49,911,170,293.80
  5. Step 5: Solve for x
    x = 49,911,170,293.80/229,968.48
  6. Step 6: Final answer
    x = 217,034.83

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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.