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Finding the Fourth Proportional to 384,440.92, 530,526.34 and 212,370.70

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Solution

The fourth proportional to 384,440.92, 530,526.34 and 212,370.70 is: 293,070.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,440.92 : 530,526.34 = 212,370.70 : x
  2. Step 2: Convert to fraction form
    384,440.92/530,526.34 = 212,370.70/x
  3. Step 3: Cross multiply
    384,440.92x = 530,526.34 × 212,370.70
  4. Step 4: Simplify right side
    384,440.92x = 112,668,250,194.24
  5. Step 5: Solve for x
    x = 112,668,250,194.24/384,440.92
  6. Step 6: Final answer
    x = 293,070.39

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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.