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Finding the Fourth Proportional to 201,611.10, 302,416.65 and 130,752.30

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Solution

The fourth proportional to 201,611.10, 302,416.65 and 130,752.30 is: 196,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,611.10 : 302,416.65 = 130,752.30 : x
  2. Step 2: Convert to fraction form
    201,611.10/302,416.65 = 130,752.30/x
  3. Step 3: Cross multiply
    201,611.10x = 302,416.65 × 130,752.30
  4. Step 4: Simplify right side
    201,611.10x = 39,541,672,545.80
  5. Step 5: Solve for x
    x = 39,541,672,545.80/201,611.10
  6. Step 6: Final answer
    x = 196,128.45

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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.