Home / 209,055.60-288,520.20-118,417.68

Finding the Fourth Proportional to 209,055.60, 288,520.20 and 118,417.68

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Solution

The fourth proportional to 209,055.60, 288,520.20 and 118,417.68 is: 163,429.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,055.60 : 288,520.20 = 118,417.68 : x
  2. Step 2: Convert to fraction form
    209,055.60/288,520.20 = 118,417.68/x
  3. Step 3: Cross multiply
    209,055.60x = 288,520.20 × 118,417.68
  4. Step 4: Simplify right side
    209,055.60x = 34,165,892,717.14
  5. Step 5: Solve for x
    x = 34,165,892,717.14/209,055.60
  6. Step 6: Final answer
    x = 163,429.69

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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.