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Finding the Fourth Proportional to 545,011.50, 817,725.33 and 212,613.42

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Solution

The fourth proportional to 545,011.50, 817,725.33 and 212,613.42 is: 319,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,011.50 : 817,725.33 = 212,613.42 : x
  2. Step 2: Convert to fraction form
    545,011.50/817,725.33 = 212,613.42/x
  3. Step 3: Cross multiply
    545,011.50x = 817,725.33 × 212,613.42
  4. Step 4: Simplify right side
    545,011.50x = 173,859,379,031.93
  5. Step 5: Solve for x
    x = 173,859,379,031.93/545,011.50
  6. Step 6: Final answer
    x = 319,001.30

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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.