Home / 287,861.37-397,250.46-160,545.15

Finding the Fourth Proportional to 287,861.37, 397,250.46 and 160,545.15

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Solution

The fourth proportional to 287,861.37, 397,250.46 and 160,545.15 is: 221,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,861.37 : 397,250.46 = 160,545.15 : x
  2. Step 2: Convert to fraction form
    287,861.37/397,250.46 = 160,545.15/x
  3. Step 3: Cross multiply
    287,861.37x = 397,250.46 × 160,545.15
  4. Step 4: Simplify right side
    287,861.37x = 63,776,634,688.27
  5. Step 5: Solve for x
    x = 63,776,634,688.27/287,861.37
  6. Step 6: Final answer
    x = 221,553.29

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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.