Home / 287,924.20-432,080.70-161,564.20

Finding the Fourth Proportional to 287,924.20, 432,080.70 and 161,564.20

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Solution

The fourth proportional to 287,924.20, 432,080.70 and 161,564.20 is: 242,455.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,924.20 : 432,080.70 = 161,564.20 : x
  2. Step 2: Convert to fraction form
    287,924.20/432,080.70 = 161,564.20/x
  3. Step 3: Cross multiply
    287,924.20x = 432,080.70 × 161,564.20
  4. Step 4: Simplify right side
    287,924.20x = 69,808,772,630.94
  5. Step 5: Solve for x
    x = 69,808,772,630.94/287,924.20
  6. Step 6: Final answer
    x = 242,455.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.