Home / 402,190.08-603,284.95-102,670.57

Finding the Fourth Proportional to 402,190.08, 603,284.95 and 102,670.57

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Solution

The fourth proportional to 402,190.08, 603,284.95 and 102,670.57 is: 154,005.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,190.08 : 603,284.95 = 102,670.57 : x
  2. Step 2: Convert to fraction form
    402,190.08/603,284.95 = 102,670.57/x
  3. Step 3: Cross multiply
    402,190.08x = 603,284.95 × 102,670.57
  4. Step 4: Simplify right side
    402,190.08x = 61,939,609,688.92
  5. Step 5: Solve for x
    x = 61,939,609,688.92/402,190.08
  6. Step 6: Final answer
    x = 154,005.81

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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.