Home / 215,800.05-297,931.80-191,860.50

Finding the Fourth Proportional to 215,800.05, 297,931.80 and 191,860.50

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Solution

The fourth proportional to 215,800.05, 297,931.80 and 191,860.50 is: 264,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,800.05 : 297,931.80 = 191,860.50 : x
  2. Step 2: Convert to fraction form
    215,800.05/297,931.80 = 191,860.50/x
  3. Step 3: Cross multiply
    215,800.05x = 297,931.80 × 191,860.50
  4. Step 4: Simplify right side
    215,800.05x = 57,161,344,113.90
  5. Step 5: Solve for x
    x = 57,161,344,113.90/215,800.05
  6. Step 6: Final answer
    x = 264,881.05

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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.