Home / 311,430.32-429,773.86-168,190.38

Finding the Fourth Proportional to 311,430.32, 429,773.86 and 168,190.38

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Solution

The fourth proportional to 311,430.32, 429,773.86 and 168,190.38 is: 232,102.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,430.32 : 429,773.86 = 168,190.38 : x
  2. Step 2: Convert to fraction form
    311,430.32/429,773.86 = 168,190.38/x
  3. Step 3: Cross multiply
    311,430.32x = 429,773.86 × 168,190.38
  4. Step 4: Simplify right side
    311,430.32x = 72,283,828,827.47
  5. Step 5: Solve for x
    x = 72,283,828,827.47/311,430.32
  6. Step 6: Final answer
    x = 232,102.73

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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.