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Finding the Fourth Proportional to 402,102.80, 602,279.40 and 323,370.80

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Solution

The fourth proportional to 402,102.80, 602,279.40 and 323,370.80 is: 484,352.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,102.80 : 602,279.40 = 323,370.80 : x
  2. Step 2: Convert to fraction form
    402,102.80/602,279.40 = 323,370.80/x
  3. Step 3: Cross multiply
    402,102.80x = 602,279.40 × 323,370.80
  4. Step 4: Simplify right side
    402,102.80x = 194,759,571,401.52
  5. Step 5: Solve for x
    x = 194,759,571,401.52/402,102.80
  6. Step 6: Final answer
    x = 484,352.69

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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.