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Finding the Fourth Proportional to 293,603.20, 440,404.80 and 288,937.60

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Solution

The fourth proportional to 293,603.20, 440,404.80 and 288,937.60 is: 433,406.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,603.20 : 440,404.80 = 288,937.60 : x
  2. Step 2: Convert to fraction form
    293,603.20/440,404.80 = 288,937.60/x
  3. Step 3: Cross multiply
    293,603.20x = 440,404.80 × 288,937.60
  4. Step 4: Simplify right side
    293,603.20x = 127,249,505,940.48
  5. Step 5: Solve for x
    x = 127,249,505,940.48/293,603.20
  6. Step 6: Final answer
    x = 433,406.40

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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.