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Finding the Fourth Proportional to 287,832.60, 397,200.24 and 160,529.76

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Solution

The fourth proportional to 287,832.60, 397,200.24 and 160,529.76 is: 221,526.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,832.60 : 397,200.24 = 160,529.76 : x
  2. Step 2: Convert to fraction form
    287,832.60/397,200.24 = 160,529.76/x
  3. Step 3: Cross multiply
    287,832.60x = 397,200.24 × 160,529.76
  4. Step 4: Simplify right side
    287,832.60x = 63,762,459,199.14
  5. Step 5: Solve for x
    x = 63,762,459,199.14/287,832.60
  6. Step 6: Final answer
    x = 221,526.19

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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.