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Finding the Fourth Proportional to 345,451.19, 476,715.47 and 192,488.77

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Solution

The fourth proportional to 345,451.19, 476,715.47 and 192,488.77 is: 265,630.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,451.19 : 476,715.47 = 192,488.77 : x
  2. Step 2: Convert to fraction form
    345,451.19/476,715.47 = 192,488.77/x
  3. Step 3: Cross multiply
    345,451.19x = 476,715.47 × 192,488.77
  4. Step 4: Simplify right side
    345,451.19x = 91,762,372,306.04
  5. Step 5: Solve for x
    x = 91,762,372,306.04/345,451.19
  6. Step 6: Final answer
    x = 265,630.50

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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.