Home / 345,276.90-476,506.06-209,316.58

Finding the Fourth Proportional to 345,276.90, 476,506.06 and 209,316.58

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Solution

The fourth proportional to 345,276.90, 476,506.06 and 209,316.58 is: 288,871.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,276.90 : 476,506.06 = 209,316.58 : x
  2. Step 2: Convert to fraction form
    345,276.90/476,506.06 = 209,316.58/x
  3. Step 3: Cross multiply
    345,276.90x = 476,506.06 × 209,316.58
  4. Step 4: Simplify right side
    345,276.90x = 99,740,617,113.92
  5. Step 5: Solve for x
    x = 99,740,617,113.92/345,276.90
  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.