Home / 383,150.08-528,763.53-213,384.21

Finding the Fourth Proportional to 383,150.08, 528,763.53 and 213,384.21

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Solution

The fourth proportional to 383,150.08, 528,763.53 and 213,384.21 is: 294,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,150.08 : 528,763.53 = 213,384.21 : x
  2. Step 2: Convert to fraction form
    383,150.08/528,763.53 = 213,384.21/x
  3. Step 3: Cross multiply
    383,150.08x = 528,763.53 × 213,384.21
  4. Step 4: Simplify right side
    383,150.08x = 112,829,788,125.86
  5. Step 5: Solve for x
    x = 112,829,788,125.86/383,150.08
  6. Step 6: Final answer
    x = 294,479.35

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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.