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Finding the Fourth Proportional to 353,430.10, 530,145.15 and 283,446.10

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Solution

The fourth proportional to 353,430.10, 530,145.15 and 283,446.10 is: 425,169.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,430.10 : 530,145.15 = 283,446.10 : x
  2. Step 2: Convert to fraction form
    353,430.10/530,145.15 = 283,446.10/x
  3. Step 3: Cross multiply
    353,430.10x = 530,145.15 × 283,446.10
  4. Step 4: Simplify right side
    353,430.10x = 150,267,575,201.42
  5. Step 5: Solve for x
    x = 150,267,575,201.42/353,430.10
  6. Step 6: Final answer
    x = 425,169.15

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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.