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Finding the Fourth Proportional to 360,409.04, 496,829.08 and 309,174.92

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Solution

The fourth proportional to 360,409.04, 496,829.08 and 309,174.92 is: 426,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,409.04 : 496,829.08 = 309,174.92 : x
  2. Step 2: Convert to fraction form
    360,409.04/496,829.08 = 309,174.92/x
  3. Step 3: Cross multiply
    360,409.04x = 496,829.08 × 309,174.92
  4. Step 4: Simplify right side
    360,409.04x = 153,607,091,062.67
  5. Step 5: Solve for x
    x = 153,607,091,062.67/360,409.04
  6. Step 6: Final answer
    x = 426,202.10

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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.