Home / 343,187.47-514,748.40-209,999.17

Finding the Fourth Proportional to 343,187.47, 514,748.40 and 209,999.17

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Solution

The fourth proportional to 343,187.47, 514,748.40 and 209,999.17 is: 314,978.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,187.47 : 514,748.40 = 209,999.17 : x
  2. Step 2: Convert to fraction form
    343,187.47/514,748.40 = 209,999.17/x
  3. Step 3: Cross multiply
    343,187.47x = 514,748.40 × 209,999.17
  4. Step 4: Simplify right side
    343,187.47x = 108,096,736,758.83
  5. Step 5: Solve for x
    x = 108,096,736,758.83/343,187.47
  6. Step 6: Final answer
    x = 314,978.68

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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.