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Finding the Fourth Proportional to 359,370.68, 495,415.98 and 282,757.64

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Solution

The fourth proportional to 359,370.68, 495,415.98 and 282,757.64 is: 389,799.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,370.68 : 495,415.98 = 282,757.64 : x
  2. Step 2: Convert to fraction form
    359,370.68/495,415.98 = 282,757.64/x
  3. Step 3: Cross multiply
    359,370.68x = 495,415.98 × 282,757.64
  4. Step 4: Simplify right side
    359,370.68x = 140,082,650,846.01
  5. Step 5: Solve for x
    x = 140,082,650,846.01/359,370.68
  6. Step 6: Final answer
    x = 389,799.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.