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Finding the Fourth Proportional to 353,451.80, 530,177.70 and 330,123.80

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Solution

The fourth proportional to 353,451.80, 530,177.70 and 330,123.80 is: 495,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,451.80 : 530,177.70 = 330,123.80 : x
  2. Step 2: Convert to fraction form
    353,451.80/530,177.70 = 330,123.80/x
  3. Step 3: Cross multiply
    353,451.80x = 530,177.70 × 330,123.80
  4. Step 4: Simplify right side
    353,451.80x = 175,024,276,999.26
  5. Step 5: Solve for x
    x = 175,024,276,999.26/353,451.80
  6. Step 6: Final answer
    x = 495,185.70

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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.