Home / 345,276.89-476,506.07-209,316.57

Finding the Fourth Proportional to 345,276.89, 476,506.07 and 209,316.57

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Solution

The fourth proportional to 345,276.89, 476,506.07 and 209,316.57 is: 288,871.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,276.89 : 476,506.07 = 209,316.57 : x
  2. Step 2: Convert to fraction form
    345,276.89/476,506.07 = 209,316.57/x
  3. Step 3: Cross multiply
    345,276.89x = 476,506.07 × 209,316.57
  4. Step 4: Simplify right side
    345,276.89x = 99,740,616,156.58
  5. Step 5: Solve for x
    x = 99,740,616,156.58/345,276.89
  6. Step 6: Final answer
    x = 288,871.39

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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.