Home / 209,087.76-288,477.54-118,429.32

Finding the Fourth Proportional to 209,087.76, 288,477.54 and 118,429.32

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Solution

The fourth proportional to 209,087.76, 288,477.54 and 118,429.32 is: 163,396.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,087.76 : 288,477.54 = 118,429.32 : x
  2. Step 2: Convert to fraction form
    209,087.76/288,477.54 = 118,429.32/x
  3. Step 3: Cross multiply
    209,087.76x = 288,477.54 × 118,429.32
  4. Step 4: Simplify right side
    209,087.76x = 34,164,198,897.47
  5. Step 5: Solve for x
    x = 34,164,198,897.47/209,087.76
  6. Step 6: Final answer
    x = 163,396.46

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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.