Home / 409,428.98-565,006.26-228,148.55

Finding the Fourth Proportional to 409,428.98, 565,006.26 and 228,148.55

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Solution

The fourth proportional to 409,428.98, 565,006.26 and 228,148.55 is: 314,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,428.98 : 565,006.26 = 228,148.55 : x
  2. Step 2: Convert to fraction form
    409,428.98/565,006.26 = 228,148.55/x
  3. Step 3: Cross multiply
    409,428.98x = 565,006.26 × 228,148.55
  4. Step 4: Simplify right side
    409,428.98x = 128,905,356,134.89
  5. Step 5: Solve for x
    x = 128,905,356,134.89/409,428.98
  6. Step 6: Final answer
    x = 314,841.80

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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.