Home / 379,830.42-524,143.71-210,053.34

Finding the Fourth Proportional to 379,830.42, 524,143.71 and 210,053.34

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Solution

The fourth proportional to 379,830.42, 524,143.71 and 210,053.34 is: 289,861.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,830.42 : 524,143.71 = 210,053.34 : x
  2. Step 2: Convert to fraction form
    379,830.42/524,143.71 = 210,053.34/x
  3. Step 3: Cross multiply
    379,830.42x = 524,143.71 × 210,053.34
  4. Step 4: Simplify right side
    379,830.42x = 110,098,136,925.49
  5. Step 5: Solve for x
    x = 110,098,136,925.49/379,830.42
  6. Step 6: Final answer
    x = 289,861.29

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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.