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Finding the Fourth Proportional to 287,078.94, 433,314.90 and 287,078.94

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Solution

The fourth proportional to 287,078.94, 433,314.90 and 287,078.94 is: 433,314.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,078.94 : 433,314.90 = 287,078.94 : x
  2. Step 2: Convert to fraction form
    287,078.94/433,314.90 = 287,078.94/x
  3. Step 3: Cross multiply
    287,078.94x = 433,314.90 × 287,078.94
  4. Step 4: Simplify right side
    287,078.94x = 124,395,582,178.21
  5. Step 5: Solve for x
    x = 124,395,582,178.21/287,078.94
  6. Step 6: Final answer
    x = 433,314.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.