Home / 209,161.50-288,607.21-118,498.74

Finding the Fourth Proportional to 209,161.50, 288,607.21 and 118,498.74

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Solution

The fourth proportional to 209,161.50, 288,607.21 and 118,498.74 is: 163,508.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,161.50 : 288,607.21 = 118,498.74 : x
  2. Step 2: Convert to fraction form
    209,161.50/288,607.21 = 118,498.74/x
  3. Step 3: Cross multiply
    209,161.50x = 288,607.21 × 118,498.74
  4. Step 4: Simplify right side
    209,161.50x = 34,199,590,739.92
  5. Step 5: Solve for x
    x = 34,199,590,739.92/209,161.50
  6. Step 6: Final answer
    x = 163,508.06

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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.