Home / 288,375.10-433,000.05-221,890.30

Finding the Fourth Proportional to 288,375.10, 433,000.05 and 221,890.30

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Solution

The fourth proportional to 288,375.10, 433,000.05 and 221,890.30 is: 333,172.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,375.10 : 433,000.05 = 221,890.30 : x
  2. Step 2: Convert to fraction form
    288,375.10/433,000.05 = 221,890.30/x
  3. Step 3: Cross multiply
    288,375.10x = 433,000.05 × 221,890.30
  4. Step 4: Simplify right side
    288,375.10x = 96,078,510,994.52
  5. Step 5: Solve for x
    x = 96,078,510,994.52/288,375.10
  6. Step 6: Final answer
    x = 333,172.01

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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.