Home / 315,124.18-434,872.71-171,887.30

Finding the Fourth Proportional to 315,124.18, 434,872.71 and 171,887.30

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Solution

The fourth proportional to 315,124.18, 434,872.71 and 171,887.30 is: 237,205.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,124.18 : 434,872.71 = 171,887.30 : x
  2. Step 2: Convert to fraction form
    315,124.18/434,872.71 = 171,887.30/x
  3. Step 3: Cross multiply
    315,124.18x = 434,872.71 × 171,887.30
  4. Step 4: Simplify right side
    315,124.18x = 74,749,095,965.58
  5. Step 5: Solve for x
    x = 74,749,095,965.58/315,124.18
  6. Step 6: Final answer
    x = 237,205.21

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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.