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Finding the Fourth Proportional to 418,625.12, 577,690.64 and 237,354.40

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Solution

The fourth proportional to 418,625.12, 577,690.64 and 237,354.40 is: 327,542.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,625.12 : 577,690.64 = 237,354.40 : x
  2. Step 2: Convert to fraction form
    418,625.12/577,690.64 = 237,354.40/x
  3. Step 3: Cross multiply
    418,625.12x = 577,690.64 × 237,354.40
  4. Step 4: Simplify right side
    418,625.12x = 137,117,415,242.82
  5. Step 5: Solve for x
    x = 137,117,415,242.82/418,625.12
  6. Step 6: Final answer
    x = 327,542.25

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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.