Home / 345,209.32-476,333.22-217,953.64

Finding the Fourth Proportional to 345,209.32, 476,333.22 and 217,953.64

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Solution

The fourth proportional to 345,209.32, 476,333.22 and 217,953.64 is: 300,740.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,209.32 : 476,333.22 = 217,953.64 : x
  2. Step 2: Convert to fraction form
    345,209.32/476,333.22 = 217,953.64/x
  3. Step 3: Cross multiply
    345,209.32x = 476,333.22 × 217,953.64
  4. Step 4: Simplify right side
    345,209.32x = 103,818,559,151.92
  5. Step 5: Solve for x
    x = 103,818,559,151.92/345,209.32
  6. Step 6: Final answer
    x = 300,740.89

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1.5x scale

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.