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Finding the Fourth Proportional to 369,499.80, 554,468.40 and 243,504.30

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Solution

The fourth proportional to 369,499.80, 554,468.40 and 243,504.30 is: 365,400.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,499.80 : 554,468.40 = 243,504.30 : x
  2. Step 2: Convert to fraction form
    369,499.80/554,468.40 = 243,504.30/x
  3. Step 3: Cross multiply
    369,499.80x = 554,468.40 × 243,504.30
  4. Step 4: Simplify right side
    369,499.80x = 135,015,439,614.12
  5. Step 5: Solve for x
    x = 135,015,439,614.12/369,499.80
  6. Step 6: Final answer
    x = 365,400.58

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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.