Home / 280,243.26-386,732.07-152,916.66

Finding the Fourth Proportional to 280,243.26, 386,732.07 and 152,916.66

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Solution

The fourth proportional to 280,243.26, 386,732.07 and 152,916.66 is: 211,023.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,243.26 : 386,732.07 = 152,916.66 : x
  2. Step 2: Convert to fraction form
    280,243.26/386,732.07 = 152,916.66/x
  3. Step 3: Cross multiply
    280,243.26x = 386,732.07 × 152,916.66
  4. Step 4: Simplify right side
    280,243.26x = 59,137,776,459.29
  5. Step 5: Solve for x
    x = 59,137,776,459.29/280,243.26
  6. Step 6: Final answer
    x = 211,023.01

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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.