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Finding the Fourth Proportional to 366,918.30, 550,377.45 and 260,630.10

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Solution

The fourth proportional to 366,918.30, 550,377.45 and 260,630.10 is: 390,945.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,918.30 : 550,377.45 = 260,630.10 : x
  2. Step 2: Convert to fraction form
    366,918.30/550,377.45 = 260,630.10/x
  3. Step 3: Cross multiply
    366,918.30x = 550,377.45 × 260,630.10
  4. Step 4: Simplify right side
    366,918.30x = 143,444,929,831.25
  5. Step 5: Solve for x
    x = 143,444,929,831.25/366,918.30
  6. Step 6: Final answer
    x = 390,945.15

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Similar ratio
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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.