Home / 352,421.04-528,626.95-86,183.86

Finding the Fourth Proportional to 352,421.04, 528,626.95 and 86,183.86

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Solution

The fourth proportional to 352,421.04, 528,626.95 and 86,183.86 is: 129,274.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,421.04 : 528,626.95 = 86,183.86 : x
  2. Step 2: Convert to fraction form
    352,421.04/528,626.95 = 86,183.86/x
  3. Step 3: Cross multiply
    352,421.04x = 528,626.95 × 86,183.86
  4. Step 4: Simplify right side
    352,421.04x = 45,559,111,127.36
  5. Step 5: Solve for x
    x = 45,559,111,127.36/352,421.04
  6. Step 6: Final answer
    x = 129,274.66

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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.