Home / 315,060.80-434,784.64-171,821.76

Finding the Fourth Proportional to 315,060.80, 434,784.64 and 171,821.76

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Solution

The fourth proportional to 315,060.80, 434,784.64 and 171,821.76 is: 237,114.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,060.80 : 434,784.64 = 171,821.76 : x
  2. Step 2: Convert to fraction form
    315,060.80/434,784.64 = 171,821.76/x
  3. Step 3: Cross multiply
    315,060.80x = 434,784.64 × 171,821.76
  4. Step 4: Simplify right side
    315,060.80x = 74,705,462,065.77
  5. Step 5: Solve for x
    x = 74,705,462,065.77/315,060.80
  6. Step 6: Final answer
    x = 237,114.43

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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.