Home / 280,362.41-386,895.18-159,501.12

Finding the Fourth Proportional to 280,362.41, 386,895.18 and 159,501.12

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Solution

The fourth proportional to 280,362.41, 386,895.18 and 159,501.12 is: 220,108.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,362.41 : 386,895.18 = 159,501.12 : x
  2. Step 2: Convert to fraction form
    280,362.41/386,895.18 = 159,501.12/x
  3. Step 3: Cross multiply
    280,362.41x = 386,895.18 × 159,501.12
  4. Step 4: Simplify right side
    280,362.41x = 61,710,213,679.87
  5. Step 5: Solve for x
    x = 61,710,213,679.87/280,362.41
  6. Step 6: Final answer
    x = 220,108.73

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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.