Home / 438,050.20-656,945.70-171,657.40

Finding the Fourth Proportional to 438,050.20, 656,945.70 and 171,657.40

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Solution

The fourth proportional to 438,050.20, 656,945.70 and 171,657.40 is: 257,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,050.20 : 656,945.70 = 171,657.40 : x
  2. Step 2: Convert to fraction form
    438,050.20/656,945.70 = 171,657.40/x
  3. Step 3: Cross multiply
    438,050.20x = 656,945.70 × 171,657.40
  4. Step 4: Simplify right side
    438,050.20x = 112,769,590,803.18
  5. Step 5: Solve for x
    x = 112,769,590,803.18/438,050.20
  6. Step 6: Final answer
    x = 257,435.31

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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.