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Finding the Fourth Proportional to 287,630.02, 431,445.03 and 87,950.41

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Solution

The fourth proportional to 287,630.02, 431,445.03 and 87,950.41 is: 131,925.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,630.02 : 431,445.03 = 87,950.41 : x
  2. Step 2: Convert to fraction form
    287,630.02/431,445.03 = 87,950.41/x
  3. Step 3: Cross multiply
    287,630.02x = 431,445.03 × 87,950.41
  4. Step 4: Simplify right side
    287,630.02x = 37,945,767,280.96
  5. Step 5: Solve for x
    x = 37,945,767,280.96/287,630.02
  6. Step 6: Final answer
    x = 131,925.62

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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.