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Finding the Fourth Proportional to 293,643.40, 440,465.10 and 254,277.40

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Solution

The fourth proportional to 293,643.40, 440,465.10 and 254,277.40 is: 381,416.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,643.40 : 440,465.10 = 254,277.40 : x
  2. Step 2: Convert to fraction form
    293,643.40/440,465.10 = 254,277.40/x
  3. Step 3: Cross multiply
    293,643.40x = 440,465.10 × 254,277.40
  4. Step 4: Simplify right side
    293,643.40x = 112,000,320,418.74
  5. Step 5: Solve for x
    x = 112,000,320,418.74/293,643.40
  6. Step 6: Final answer
    x = 381,416.10

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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.