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Finding the Fourth Proportional to 220,262.64, 303,933.36 and 139,547.76

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Solution

The fourth proportional to 220,262.64, 303,933.36 and 139,547.76 is: 192,557.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,262.64 : 303,933.36 = 139,547.76 : x
  2. Step 2: Convert to fraction form
    220,262.64/303,933.36 = 139,547.76/x
  3. Step 3: Cross multiply
    220,262.64x = 303,933.36 × 139,547.76
  4. Step 4: Simplify right side
    220,262.64x = 42,413,219,577.27
  5. Step 5: Solve for x
    x = 42,413,219,577.27/220,262.64
  6. Step 6: Final answer
    x = 192,557.48

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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.