Home / 212,528.40-319,267.80-177,536.40

Finding the Fourth Proportional to 212,528.40, 319,267.80 and 177,536.40

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Solution

The fourth proportional to 212,528.40, 319,267.80 and 177,536.40 is: 266,701.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,528.40 : 319,267.80 = 177,536.40 : x
  2. Step 2: Convert to fraction form
    212,528.40/319,267.80 = 177,536.40/x
  3. Step 3: Cross multiply
    212,528.40x = 319,267.80 × 177,536.40
  4. Step 4: Simplify right side
    212,528.40x = 56,681,655,847.92
  5. Step 5: Solve for x
    x = 56,681,655,847.92/212,528.40
  6. Step 6: Final answer
    x = 266,701.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.