Home / 289,213.22-433,807.04-78,851.18

Finding the Fourth Proportional to 289,213.22, 433,807.04 and 78,851.18

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Solution

The fourth proportional to 289,213.22, 433,807.04 and 78,851.18 is: 118,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,213.22 : 433,807.04 = 78,851.18 : x
  2. Step 2: Convert to fraction form
    289,213.22/433,807.04 = 78,851.18/x
  3. Step 3: Cross multiply
    289,213.22x = 433,807.04 × 78,851.18
  4. Step 4: Simplify right side
    289,213.22x = 34,206,196,996.31
  5. Step 5: Solve for x
    x = 34,206,196,996.31/289,213.22
  6. Step 6: Final answer
    x = 118,273.28

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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.