Home / 345,385.16-517,504.98-210,039.80

Finding the Fourth Proportional to 345,385.16, 517,504.98 and 210,039.80

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Solution

The fourth proportional to 345,385.16, 517,504.98 and 210,039.80 is: 314,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,385.16 : 517,504.98 = 210,039.80 : x
  2. Step 2: Convert to fraction form
    345,385.16/517,504.98 = 210,039.80/x
  3. Step 3: Cross multiply
    345,385.16x = 517,504.98 × 210,039.80
  4. Step 4: Simplify right side
    345,385.16x = 108,696,642,498.20
  5. Step 5: Solve for x
    x = 108,696,642,498.20/345,385.16
  6. Step 6: Final answer
    x = 314,711.39

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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.