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Finding the Fourth Proportional to 201,810.20, 302,715.30 and 180,037.40

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Solution

The fourth proportional to 201,810.20, 302,715.30 and 180,037.40 is: 270,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,810.20 : 302,715.30 = 180,037.40 : x
  2. Step 2: Convert to fraction form
    201,810.20/302,715.30 = 180,037.40/x
  3. Step 3: Cross multiply
    201,810.20x = 302,715.30 × 180,037.40
  4. Step 4: Simplify right side
    201,810.20x = 54,500,075,552.22
  5. Step 5: Solve for x
    x = 54,500,075,552.22/201,810.20
  6. Step 6: Final answer
    x = 270,056.10

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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.