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Finding the Fourth Proportional to 201,555.60, 302,041.80 and 89,143.80

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Solution

The fourth proportional to 201,555.60, 302,041.80 and 89,143.80 is: 133,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,555.60 : 302,041.80 = 89,143.80 : x
  2. Step 2: Convert to fraction form
    201,555.60/302,041.80 = 89,143.80/x
  3. Step 3: Cross multiply
    201,555.60x = 302,041.80 × 89,143.80
  4. Step 4: Simplify right side
    201,555.60x = 26,925,153,810.84
  5. Step 5: Solve for x
    x = 26,925,153,810.84/201,555.60
  6. Step 6: Final answer
    x = 133,586.73

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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.