Home / 280,156.05-418,049.01-249,962.76

Finding the Fourth Proportional to 280,156.05, 418,049.01 and 249,962.76

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Solution

The fourth proportional to 280,156.05, 418,049.01 and 249,962.76 is: 372,994.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,156.05 : 418,049.01 = 249,962.76 : x
  2. Step 2: Convert to fraction form
    280,156.05/418,049.01 = 249,962.76/x
  3. Step 3: Cross multiply
    280,156.05x = 418,049.01 × 249,962.76
  4. Step 4: Simplify right side
    280,156.05x = 104,496,684,354.87
  5. Step 5: Solve for x
    x = 104,496,684,354.87/280,156.05
  6. Step 6: Final answer
    x = 372,994.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.