Home / 280,125.63-386,567.10-152,805.78

Finding the Fourth Proportional to 280,125.63, 386,567.10 and 152,805.78

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Solution

The fourth proportional to 280,125.63, 386,567.10 and 152,805.78 is: 210,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,125.63 : 386,567.10 = 152,805.78 : x
  2. Step 2: Convert to fraction form
    280,125.63/386,567.10 = 152,805.78/x
  3. Step 3: Cross multiply
    280,125.63x = 386,567.10 × 152,805.78
  4. Step 4: Simplify right side
    280,125.63x = 59,069,687,237.84
  5. Step 5: Solve for x
    x = 59,069,687,237.84/280,125.63
  6. Step 6: Final answer
    x = 210,868.56

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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.