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Finding the Fourth Proportional to 208,728.58, 288,026.40 and 118,092.82

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Solution

The fourth proportional to 208,728.58, 288,026.40 and 118,092.82 is: 162,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,728.58 : 288,026.40 = 118,092.82 : x
  2. Step 2: Convert to fraction form
    208,728.58/288,026.40 = 118,092.82/x
  3. Step 3: Cross multiply
    208,728.58x = 288,026.40 × 118,092.82
  4. Step 4: Simplify right side
    208,728.58x = 34,013,849,810.45
  5. Step 5: Solve for x
    x = 34,013,849,810.45/208,728.58
  6. Step 6: Final answer
    x = 162,957.32

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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.