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Finding the Fourth Proportional to 360,245.78, 539,925.74 and 202,142.06

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Solution

The fourth proportional to 360,245.78, 539,925.74 and 202,142.06 is: 302,964.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,245.78 : 539,925.74 = 202,142.06 : x
  2. Step 2: Convert to fraction form
    360,245.78/539,925.74 = 202,142.06/x
  3. Step 3: Cross multiply
    360,245.78x = 539,925.74 × 202,142.06
  4. Step 4: Simplify right side
    360,245.78x = 109,141,701,330.62
  5. Step 5: Solve for x
    x = 109,141,701,330.62/360,245.78
  6. Step 6: Final answer
    x = 302,964.55

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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.