Home / 209,320.89-288,854.11-118,682.98

Finding the Fourth Proportional to 209,320.89, 288,854.11 and 118,682.98

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Solution

The fourth proportional to 209,320.89, 288,854.11 and 118,682.98 is: 163,777.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,320.89 : 288,854.11 = 118,682.98 : x
  2. Step 2: Convert to fraction form
    209,320.89/288,854.11 = 118,682.98/x
  3. Step 3: Cross multiply
    209,320.89x = 288,854.11 × 118,682.98
  4. Step 4: Simplify right side
    209,320.89x = 34,282,065,966.63
  5. Step 5: Solve for x
    x = 34,282,065,966.63/209,320.89
  6. Step 6: Final answer
    x = 163,777.57

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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.