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Finding the Fourth Proportional to 553,750.12, 764,175.63 and 299,101.51

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Solution

The fourth proportional to 553,750.12, 764,175.63 and 299,101.51 is: 412,760.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,750.12 : 764,175.63 = 299,101.51 : x
  2. Step 2: Convert to fraction form
    553,750.12/764,175.63 = 299,101.51/x
  3. Step 3: Cross multiply
    553,750.12x = 764,175.63 × 299,101.51
  4. Step 4: Simplify right side
    553,750.12x = 228,566,084,838.20
  5. Step 5: Solve for x
    x = 228,566,084,838.20/553,750.12
  6. Step 6: Final answer
    x = 412,760.33

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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.