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Finding the Fourth Proportional to 163,473, 243,778.95 and 161,978.25

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Solution

The fourth proportional to 163,473, 243,778.95 and 161,978.25 is: 241,549.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,473 : 243,778.95 = 161,978.25 : x
  2. Step 2: Convert to fraction form
    163,473/243,778.95 = 161,978.25/x
  3. Step 3: Cross multiply
    163,473x = 243,778.95 × 161,978.25
  4. Step 4: Simplify right side
    163,473x = 39,486,887,707.84
  5. Step 5: Solve for x
    x = 39,486,887,707.84/163,473
  6. Step 6: Final answer
    x = 241,549.91

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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.