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Finding the Fourth Proportional to 172,130.52, 256,465.71 and 162,461.62

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Solution

The fourth proportional to 172,130.52, 256,465.71 and 162,461.62 is: 242,059.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,130.52 : 256,465.71 = 162,461.62 : x
  2. Step 2: Convert to fraction form
    172,130.52/256,465.71 = 162,461.62/x
  3. Step 3: Cross multiply
    172,130.52x = 256,465.71 × 162,461.62
  4. Step 4: Simplify right side
    172,130.52x = 41,665,834,721.05
  5. Step 5: Solve for x
    x = 41,665,834,721.05/172,130.52
  6. Step 6: Final answer
    x = 242,059.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.