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Finding the Fourth Proportional to 358,534.80, 537,802.20 and 353,005.20

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Solution

The fourth proportional to 358,534.80, 537,802.20 and 353,005.20 is: 529,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,534.80 : 537,802.20 = 353,005.20 : x
  2. Step 2: Convert to fraction form
    358,534.80/537,802.20 = 353,005.20/x
  3. Step 3: Cross multiply
    358,534.80x = 537,802.20 × 353,005.20
  4. Step 4: Simplify right side
    358,534.80x = 189,846,973,171.44
  5. Step 5: Solve for x
    x = 189,846,973,171.44/358,534.80
  6. Step 6: Final answer
    x = 529,507.80

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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.