Home / 353,345.10-529,672.05-142,701.90

Finding the Fourth Proportional to 353,345.10, 529,672.05 and 142,701.90

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Solution

The fourth proportional to 353,345.10, 529,672.05 and 142,701.90 is: 213,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,345.10 : 529,672.05 = 142,701.90 : x
  2. Step 2: Convert to fraction form
    353,345.10/529,672.05 = 142,701.90/x
  3. Step 3: Cross multiply
    353,345.10x = 529,672.05 × 142,701.90
  4. Step 4: Simplify right side
    353,345.10x = 75,585,207,911.90
  5. Step 5: Solve for x
    x = 75,585,207,911.90/353,345.10
  6. Step 6: Final answer
    x = 213,913.28

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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.