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Finding the Fourth Proportional to 366,959.80, 550,439.70 and 320,303.80

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Solution

The fourth proportional to 366,959.80, 550,439.70 and 320,303.80 is: 480,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,959.80 : 550,439.70 = 320,303.80 : x
  2. Step 2: Convert to fraction form
    366,959.80/550,439.70 = 320,303.80/x
  3. Step 3: Cross multiply
    366,959.80x = 550,439.70 × 320,303.80
  4. Step 4: Simplify right side
    366,959.80x = 176,307,927,580.86
  5. Step 5: Solve for x
    x = 176,307,927,580.86/366,959.80
  6. Step 6: Final answer
    x = 480,455.70

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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.