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Finding the Fourth Proportional to 287,003.32, 395,932.03 and 185,061.51

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Solution

The fourth proportional to 287,003.32, 395,932.03 and 185,061.51 is: 255,299.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,003.32 : 395,932.03 = 185,061.51 : x
  2. Step 2: Convert to fraction form
    287,003.32/395,932.03 = 185,061.51/x
  3. Step 3: Cross multiply
    287,003.32x = 395,932.03 × 185,061.51
  4. Step 4: Simplify right side
    287,003.32x = 73,271,778,866.51
  5. Step 5: Solve for x
    x = 73,271,778,866.51/287,003.32
  6. Step 6: Final answer
    x = 255,299.41

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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.