Home / 400,825.54-553,148.16-228,740.06

Finding the Fourth Proportional to 400,825.54, 553,148.16 and 228,740.06

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Solution

The fourth proportional to 400,825.54, 553,148.16 and 228,740.06 is: 315,666.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,825.54 : 553,148.16 = 228,740.06 : x
  2. Step 2: Convert to fraction form
    400,825.54/553,148.16 = 228,740.06/x
  3. Step 3: Cross multiply
    400,825.54x = 553,148.16 × 228,740.06
  4. Step 4: Simplify right side
    400,825.54x = 126,527,143,307.29
  5. Step 5: Solve for x
    x = 126,527,143,307.29/400,825.54
  6. Step 6: Final answer
    x = 315,666.37

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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.