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Finding the Fourth Proportional to 309,359.72, 426,917.22 and 175,223.72

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Solution

The fourth proportional to 309,359.72, 426,917.22 and 175,223.72 is: 241,809.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,359.72 : 426,917.22 = 175,223.72 : x
  2. Step 2: Convert to fraction form
    309,359.72/426,917.22 = 175,223.72/x
  3. Step 3: Cross multiply
    309,359.72x = 426,917.22 × 175,223.72
  4. Step 4: Simplify right side
    309,359.72x = 74,806,023,420.46
  5. Step 5: Solve for x
    x = 74,806,023,420.46/309,359.72
  6. Step 6: Final answer
    x = 241,809.19

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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.