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Finding the Fourth Proportional to 288,938.72, 432,820.56 and 235,820

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Solution

The fourth proportional to 288,938.72, 432,820.56 and 235,820 is: 353,250.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,938.72 : 432,820.56 = 235,820 : x
  2. Step 2: Convert to fraction form
    288,938.72/432,820.56 = 235,820/x
  3. Step 3: Cross multiply
    288,938.72x = 432,820.56 × 235,820
  4. Step 4: Simplify right side
    288,938.72x = 102,067,744,459.20
  5. Step 5: Solve for x
    x = 102,067,744,459.20/288,938.72
  6. Step 6: Final answer
    x = 353,250.49

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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.