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Finding the Fourth Proportional to 357,645.40, 536,468.10 and 239,450.20

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Solution

The fourth proportional to 357,645.40, 536,468.10 and 239,450.20 is: 359,175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,645.40 : 536,468.10 = 239,450.20 : x
  2. Step 2: Convert to fraction form
    357,645.40/536,468.10 = 239,450.20/x
  3. Step 3: Cross multiply
    357,645.40x = 536,468.10 × 239,450.20
  4. Step 4: Simplify right side
    357,645.40x = 128,457,393,838.62
  5. Step 5: Solve for x
    x = 128,457,393,838.62/357,645.40
  6. Step 6: Final answer
    x = 359,175.30

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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.