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Finding the Fourth Proportional to 617,141.80, 925,712.70 and 302,213.80

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Solution

The fourth proportional to 617,141.80, 925,712.70 and 302,213.80 is: 453,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,141.80 : 925,712.70 = 302,213.80 : x
  2. Step 2: Convert to fraction form
    617,141.80/925,712.70 = 302,213.80/x
  3. Step 3: Cross multiply
    617,141.80x = 925,712.70 × 302,213.80
  4. Step 4: Simplify right side
    617,141.80x = 279,763,152,775.26
  5. Step 5: Solve for x
    x = 279,763,152,775.26/617,141.80
  6. Step 6: Final answer
    x = 453,320.70

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Similar ratio
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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.