Home / 230,117.13-317,289.90-157,555.20

Finding the Fourth Proportional to 230,117.13, 317,289.90 and 157,555.20

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Solution

The fourth proportional to 230,117.13, 317,289.90 and 157,555.20 is: 217,240.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,117.13 : 317,289.90 = 157,555.20 : x
  2. Step 2: Convert to fraction form
    230,117.13/317,289.90 = 157,555.20/x
  3. Step 3: Cross multiply
    230,117.13x = 317,289.90 × 157,555.20
  4. Step 4: Simplify right side
    230,117.13x = 49,990,673,652.48
  5. Step 5: Solve for x
    x = 49,990,673,652.48/230,117.13
  6. Step 6: Final answer
    x = 217,240.12

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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.