Home / 272,345.40-408,518.10-228,386.70

Finding the Fourth Proportional to 272,345.40, 408,518.10 and 228,386.70

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Solution

The fourth proportional to 272,345.40, 408,518.10 and 228,386.70 is: 342,580.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,345.40 : 408,518.10 = 228,386.70 : x
  2. Step 2: Convert to fraction form
    272,345.40/408,518.10 = 228,386.70/x
  3. Step 3: Cross multiply
    272,345.40x = 408,518.10 × 228,386.70
  4. Step 4: Simplify right side
    272,345.40x = 93,300,100,749.27
  5. Step 5: Solve for x
    x = 93,300,100,749.27/272,345.40
  6. Step 6: Final answer
    x = 342,580.05

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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.