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Finding the Fourth Proportional to 302,721.80, 454,082.70 and 255,482.60

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Solution

The fourth proportional to 302,721.80, 454,082.70 and 255,482.60 is: 383,223.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,721.80 : 454,082.70 = 255,482.60 : x
  2. Step 2: Convert to fraction form
    302,721.80/454,082.70 = 255,482.60/x
  3. Step 3: Cross multiply
    302,721.80x = 454,082.70 × 255,482.60
  4. Step 4: Simplify right side
    302,721.80x = 116,010,228,811.02
  5. Step 5: Solve for x
    x = 116,010,228,811.02/302,721.80
  6. Step 6: Final answer
    x = 383,223.90

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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.