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Finding the Fourth Proportional to 282,058.37, 389,250.66 and 154,737.71

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Solution

The fourth proportional to 282,058.37, 389,250.66 and 154,737.71 is: 213,543.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,058.37 : 389,250.66 = 154,737.71 : x
  2. Step 2: Convert to fraction form
    282,058.37/389,250.66 = 154,737.71/x
  3. Step 3: Cross multiply
    282,058.37x = 389,250.66 × 154,737.71
  4. Step 4: Simplify right side
    282,058.37x = 60,231,753,798.14
  5. Step 5: Solve for x
    x = 60,231,753,798.14/282,058.37
  6. Step 6: Final answer
    x = 213,543.58

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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.