Home / 358,492.20-538,904.70-307,170.60

Finding the Fourth Proportional to 358,492.20, 538,904.70 and 307,170.60

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Solution

The fourth proportional to 358,492.20, 538,904.70 and 307,170.60 is: 461,755.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,492.20 : 538,904.70 = 307,170.60 : x
  2. Step 2: Convert to fraction form
    358,492.20/538,904.70 = 307,170.60/x
  3. Step 3: Cross multiply
    358,492.20x = 538,904.70 × 307,170.60
  4. Step 4: Simplify right side
    358,492.20x = 165,535,680,041.82
  5. Step 5: Solve for x
    x = 165,535,680,041.82/358,492.20
  6. Step 6: Final answer
    x = 461,755.32

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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.