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Finding the Fourth Proportional to 637,172.10, 955,817.55 and 210,709.62

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Solution

The fourth proportional to 637,172.10, 955,817.55 and 210,709.62 is: 316,084.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,172.10 : 955,817.55 = 210,709.62 : x
  2. Step 2: Convert to fraction form
    637,172.10/955,817.55 = 210,709.62/x
  3. Step 3: Cross multiply
    637,172.10x = 955,817.55 × 210,709.62
  4. Step 4: Simplify right side
    637,172.10x = 201,399,952,749.83
  5. Step 5: Solve for x
    x = 201,399,952,749.83/637,172.10
  6. Step 6: Final answer
    x = 316,084.07

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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.