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Finding the Fourth Proportional to 161,411.54, 222,615.27 and 143,275.50

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Solution

The fourth proportional to 161,411.54, 222,615.27 and 143,275.50 is: 197,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,411.54 : 222,615.27 = 143,275.50 : x
  2. Step 2: Convert to fraction form
    161,411.54/222,615.27 = 143,275.50/x
  3. Step 3: Cross multiply
    161,411.54x = 222,615.27 × 143,275.50
  4. Step 4: Simplify right side
    161,411.54x = 31,895,314,116.89
  5. Step 5: Solve for x
    x = 31,895,314,116.89/161,411.54
  6. Step 6: Final answer
    x = 197,602.45

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1.5x scale

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.