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Finding the Fourth Proportional to 209,333.63, 288,871.65 and 118,695.74

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Solution

The fourth proportional to 209,333.63, 288,871.65 and 118,695.74 is: 163,795.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,333.63 : 288,871.65 = 118,695.74 : x
  2. Step 2: Convert to fraction form
    209,333.63/288,871.65 = 118,695.74/x
  3. Step 3: Cross multiply
    209,333.63x = 288,871.65 × 118,695.74
  4. Step 4: Simplify right side
    209,333.63x = 34,287,832,817.41
  5. Step 5: Solve for x
    x = 34,287,832,817.41/209,333.63
  6. Step 6: Final answer
    x = 163,795.15

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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.