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Finding the Fourth Proportional to 435,285.90, 653,039.01 and 210,753.90

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Solution

The fourth proportional to 435,285.90, 653,039.01 and 210,753.90 is: 316,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,285.90 : 653,039.01 = 210,753.90 : x
  2. Step 2: Convert to fraction form
    435,285.90/653,039.01 = 210,753.90/x
  3. Step 3: Cross multiply
    435,285.90x = 653,039.01 × 210,753.90
  4. Step 4: Simplify right side
    435,285.90x = 137,630,518,209.64
  5. Step 5: Solve for x
    x = 137,630,518,209.64/435,285.90
  6. Step 6: Final answer
    x = 316,184.19

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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.