Home / 309,403.79-464,238.02-129,531.24

Finding the Fourth Proportional to 309,403.79, 464,238.02 and 129,531.24

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Solution

The fourth proportional to 309,403.79, 464,238.02 and 129,531.24 is: 194,352.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,403.79 : 464,238.02 = 129,531.24 : x
  2. Step 2: Convert to fraction form
    309,403.79/464,238.02 = 129,531.24/x
  3. Step 3: Cross multiply
    309,403.79x = 464,238.02 × 129,531.24
  4. Step 4: Simplify right side
    309,403.79x = 60,133,325,980.96
  5. Step 5: Solve for x
    x = 60,133,325,980.96/309,403.79
  6. Step 6: Final answer
    x = 194,352.26

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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.