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Finding the Fourth Proportional to 266,465.40, 399,114.90 and 231,473.40

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Solution

The fourth proportional to 266,465.40, 399,114.90 and 231,473.40 is: 346,703.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,465.40 : 399,114.90 = 231,473.40 : x
  2. Step 2: Convert to fraction form
    266,465.40/399,114.90 = 231,473.40/x
  3. Step 3: Cross multiply
    266,465.40x = 399,114.90 × 231,473.40
  4. Step 4: Simplify right side
    266,465.40x = 92,384,482,893.66
  5. Step 5: Solve for x
    x = 92,384,482,893.66/266,465.40
  6. Step 6: Final answer
    x = 346,703.49

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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.