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Finding the Fourth Proportional to 288,775.20, 433,159.20 and 130,893.60

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Solution

The fourth proportional to 288,775.20, 433,159.20 and 130,893.60 is: 196,338.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,775.20 : 433,159.20 = 130,893.60 : x
  2. Step 2: Convert to fraction form
    288,775.20/433,159.20 = 130,893.60/x
  3. Step 3: Cross multiply
    288,775.20x = 433,159.20 × 130,893.60
  4. Step 4: Simplify right side
    288,775.20x = 56,697,767,061.12
  5. Step 5: Solve for x
    x = 56,697,767,061.12/288,775.20
  6. Step 6: Final answer
    x = 196,338.77

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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.