Home / 419,159.18-578,439.74-228,174.02

Finding the Fourth Proportional to 419,159.18, 578,439.74 and 228,174.02

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Solution

The fourth proportional to 419,159.18, 578,439.74 and 228,174.02 is: 314,880.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,159.18 : 578,439.74 = 228,174.02 : x
  2. Step 2: Convert to fraction form
    419,159.18/578,439.74 = 228,174.02/x
  3. Step 3: Cross multiply
    419,159.18x = 578,439.74 × 228,174.02
  4. Step 4: Simplify right side
    419,159.18x = 131,984,920,803.56
  5. Step 5: Solve for x
    x = 131,984,920,803.56/419,159.18
  6. Step 6: Final answer
    x = 314,880.19

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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.