Home / 186,860.40-280,290.60-172,426.20

Finding the Fourth Proportional to 186,860.40, 280,290.60 and 172,426.20

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Solution

The fourth proportional to 186,860.40, 280,290.60 and 172,426.20 is: 258,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,860.40 : 280,290.60 = 172,426.20 : x
  2. Step 2: Convert to fraction form
    186,860.40/280,290.60 = 172,426.20/x
  3. Step 3: Cross multiply
    186,860.40x = 280,290.60 × 172,426.20
  4. Step 4: Simplify right side
    186,860.40x = 48,329,443,053.72
  5. Step 5: Solve for x
    x = 48,329,443,053.72/186,860.40
  6. Step 6: Final answer
    x = 258,639.30

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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.