Home / 289,487.19-433,943.44-137,417.79

Finding the Fourth Proportional to 289,487.19, 433,943.44 and 137,417.79

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Solution

The fourth proportional to 289,487.19, 433,943.44 and 137,417.79 is: 205,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,487.19 : 433,943.44 = 137,417.79 : x
  2. Step 2: Convert to fraction form
    289,487.19/433,943.44 = 137,417.79/x
  3. Step 3: Cross multiply
    289,487.19x = 433,943.44 × 137,417.79
  4. Step 4: Simplify right side
    289,487.19x = 59,631,548,166.25
  5. Step 5: Solve for x
    x = 59,631,548,166.25/289,487.19
  6. Step 6: Final answer
    x = 205,990.28

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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.