Home / 640,116.15-960,317.21-240,760.35

Finding the Fourth Proportional to 640,116.15, 960,317.21 and 240,760.35

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Solution

The fourth proportional to 640,116.15, 960,317.21 and 240,760.35 is: 361,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,116.15 : 960,317.21 = 240,760.35 : x
  2. Step 2: Convert to fraction form
    640,116.15/960,317.21 = 240,760.35/x
  3. Step 3: Cross multiply
    640,116.15x = 960,317.21 × 240,760.35
  4. Step 4: Simplify right side
    640,116.15x = 231,206,306,386.82
  5. Step 5: Solve for x
    x = 231,206,306,386.82/640,116.15
  6. Step 6: Final answer
    x = 361,194.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.