Home / 209,275.85-288,810.54-118,633.58

Finding the Fourth Proportional to 209,275.85, 288,810.54 and 118,633.58

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Solution

The fourth proportional to 209,275.85, 288,810.54 and 118,633.58 is: 163,719.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,275.85 : 288,810.54 = 118,633.58 : x
  2. Step 2: Convert to fraction form
    209,275.85/288,810.54 = 118,633.58/x
  3. Step 3: Cross multiply
    209,275.85x = 288,810.54 × 118,633.58
  4. Step 4: Simplify right side
    209,275.85x = 34,262,626,857.88
  5. Step 5: Solve for x
    x = 34,262,626,857.88/209,275.85
  6. Step 6: Final answer
    x = 163,719.93

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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.