Home / 400,817.50-553,117.23-228,732.34

Finding the Fourth Proportional to 400,817.50, 553,117.23 and 228,732.34

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Solution

The fourth proportional to 400,817.50, 553,117.23 and 228,732.34 is: 315,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,817.50 : 553,117.23 = 228,732.34 : x
  2. Step 2: Convert to fraction form
    400,817.50/553,117.23 = 228,732.34/x
  3. Step 3: Cross multiply
    400,817.50x = 553,117.23 × 228,732.34
  4. Step 4: Simplify right side
    400,817.50x = 126,515,798,312.22
  5. Step 5: Solve for x
    x = 126,515,798,312.22/400,817.50
  6. Step 6: Final answer
    x = 315,644.40

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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.