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Finding the Fourth Proportional to 434,852.70, 652,279.05 and 302,142.30

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Solution

The fourth proportional to 434,852.70, 652,279.05 and 302,142.30 is: 453,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,852.70 : 652,279.05 = 302,142.30 : x
  2. Step 2: Convert to fraction form
    434,852.70/652,279.05 = 302,142.30/x
  3. Step 3: Cross multiply
    434,852.70x = 652,279.05 × 302,142.30
  4. Step 4: Simplify right side
    434,852.70x = 197,081,092,408.82
  5. Step 5: Solve for x
    x = 197,081,092,408.82/434,852.70
  6. Step 6: Final answer
    x = 453,213.45

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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.