Home / 289,068.12-433,452.75-126,895.80

Finding the Fourth Proportional to 289,068.12, 433,452.75 and 126,895.80

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Solution

The fourth proportional to 289,068.12, 433,452.75 and 126,895.80 is: 190,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,068.12 : 433,452.75 = 126,895.80 : x
  2. Step 2: Convert to fraction form
    289,068.12/433,452.75 = 126,895.80/x
  3. Step 3: Cross multiply
    289,068.12x = 433,452.75 × 126,895.80
  4. Step 4: Simplify right side
    289,068.12x = 55,003,333,473.45
  5. Step 5: Solve for x
    x = 55,003,333,473.45/289,068.12
  6. Step 6: Final answer
    x = 190,278.10

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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.