Home / 331,935.12-497,902.96-142,272.40

Finding the Fourth Proportional to 331,935.12, 497,902.96 and 142,272.40

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Solution

The fourth proportional to 331,935.12, 497,902.96 and 142,272.40 is: 213,408.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,935.12 : 497,902.96 = 142,272.40 : x
  2. Step 2: Convert to fraction form
    331,935.12/497,902.96 = 142,272.40/x
  3. Step 3: Cross multiply
    331,935.12x = 497,902.96 × 142,272.40
  4. Step 4: Simplify right side
    331,935.12x = 70,837,849,086.30
  5. Step 5: Solve for x
    x = 70,837,849,086.30/331,935.12
  6. Step 6: Final answer
    x = 213,408.72

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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.