Home / 345,485.57-476,516.30-228,988.35

Finding the Fourth Proportional to 345,485.57, 476,516.30 and 228,988.35

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Solution

The fourth proportional to 345,485.57, 476,516.30 and 228,988.35 is: 315,835.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,485.57 : 476,516.30 = 228,988.35 : x
  2. Step 2: Convert to fraction form
    345,485.57/476,516.30 = 228,988.35/x
  3. Step 3: Cross multiply
    345,485.57x = 476,516.30 × 228,988.35
  4. Step 4: Simplify right side
    345,485.57x = 109,116,681,428.22
  5. Step 5: Solve for x
    x = 109,116,681,428.22/345,485.57
  6. Step 6: Final answer
    x = 315,835.72

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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.