Home / 309,403.32-426,954.40-182,061.60

Finding the Fourth Proportional to 309,403.32, 426,954.40 and 182,061.60

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Solution

The fourth proportional to 309,403.32, 426,954.40 and 182,061.60 is: 251,231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,403.32 : 426,954.40 = 182,061.60 : x
  2. Step 2: Convert to fraction form
    309,403.32/426,954.40 = 182,061.60/x
  3. Step 3: Cross multiply
    309,403.32x = 426,954.40 × 182,061.60
  4. Step 4: Simplify right side
    309,403.32x = 77,732,001,191.04
  5. Step 5: Solve for x
    x = 77,732,001,191.04/309,403.32
  6. Step 6: Final answer
    x = 251,231.96

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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.