Home / 209,336.63-288,875.79-118,698.74

Finding the Fourth Proportional to 209,336.63, 288,875.79 and 118,698.74

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Solution

The fourth proportional to 209,336.63, 288,875.79 and 118,698.74 is: 163,799.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,336.63 : 288,875.79 = 118,698.74 : x
  2. Step 2: Convert to fraction form
    209,336.63/288,875.79 = 118,698.74/x
  3. Step 3: Cross multiply
    209,336.63x = 288,875.79 × 118,698.74
  4. Step 4: Simplify right side
    209,336.63x = 34,289,192,289.50
  5. Step 5: Solve for x
    x = 34,289,192,289.50/209,336.63
  6. Step 6: Final answer
    x = 163,799.29

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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.