Home / 495,005.85-742,016.70-228,301.20

Finding the Fourth Proportional to 495,005.85, 742,016.70 and 228,301.20

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Solution

The fourth proportional to 495,005.85, 742,016.70 and 228,301.20 is: 342,224.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,005.85 : 742,016.70 = 228,301.20 : x
  2. Step 2: Convert to fraction form
    495,005.85/742,016.70 = 228,301.20/x
  3. Step 3: Cross multiply
    495,005.85x = 742,016.70 × 228,301.20
  4. Step 4: Simplify right side
    495,005.85x = 169,403,303,030.04
  5. Step 5: Solve for x
    x = 169,403,303,030.04/495,005.85
  6. Step 6: Final answer
    x = 342,224.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.