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Finding the Fourth Proportional to 207,999.58, 287,038.34 and 112,506.02

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Solution

The fourth proportional to 207,999.58, 287,038.34 and 112,506.02 is: 155,257.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,999.58 : 287,038.34 = 112,506.02 : x
  2. Step 2: Convert to fraction form
    207,999.58/287,038.34 = 112,506.02/x
  3. Step 3: Cross multiply
    207,999.58x = 287,038.34 × 112,506.02
  4. Step 4: Simplify right side
    207,999.58x = 32,293,541,220.81
  5. Step 5: Solve for x
    x = 32,293,541,220.81/207,999.58
  6. Step 6: Final answer
    x = 155,257.72

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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.