Home / 403,421.58-556,699.50-222,126.30

Finding the Fourth Proportional to 403,421.58, 556,699.50 and 222,126.30

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Solution

The fourth proportional to 403,421.58, 556,699.50 and 222,126.30 is: 306,522.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,421.58 : 556,699.50 = 222,126.30 : x
  2. Step 2: Convert to fraction form
    403,421.58/556,699.50 = 222,126.30/x
  3. Step 3: Cross multiply
    403,421.58x = 556,699.50 × 222,126.30
  4. Step 4: Simplify right side
    403,421.58x = 123,657,600,146.85
  5. Step 5: Solve for x
    x = 123,657,600,146.85/403,421.58
  6. Step 6: Final answer
    x = 306,522.03

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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.