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Finding the Fourth Proportional to 550,036.20, 759,103.74 and 308,319.24

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Solution

The fourth proportional to 550,036.20, 759,103.74 and 308,319.24 is: 425,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,036.20 : 759,103.74 = 308,319.24 : x
  2. Step 2: Convert to fraction form
    550,036.20/759,103.74 = 308,319.24/x
  3. Step 3: Cross multiply
    550,036.20x = 759,103.74 × 308,319.24
  4. Step 4: Simplify right side
    550,036.20x = 234,046,288,197.96
  5. Step 5: Solve for x
    x = 234,046,288,197.96/550,036.20
  6. Step 6: Final answer
    x = 425,510.70

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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.