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Finding the Fourth Proportional to 283,643.70, 425,465.55 and 231,155.70

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Solution

The fourth proportional to 283,643.70, 425,465.55 and 231,155.70 is: 346,733.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,643.70 : 425,465.55 = 231,155.70 : x
  2. Step 2: Convert to fraction form
    283,643.70/425,465.55 = 231,155.70/x
  3. Step 3: Cross multiply
    283,643.70x = 425,465.55 × 231,155.70
  4. Step 4: Simplify right side
    283,643.70x = 98,348,787,036.14
  5. Step 5: Solve for x
    x = 98,348,787,036.14/283,643.70
  6. Step 6: Final answer
    x = 346,733.55

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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.