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Finding the Fourth Proportional to 385,737.32, 578,660.94 and 119,518.76

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Solution

The fourth proportional to 385,737.32, 578,660.94 and 119,518.76 is: 179,295.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,737.32 : 578,660.94 = 119,518.76 : x
  2. Step 2: Convert to fraction form
    385,737.32/578,660.94 = 119,518.76/x
  3. Step 3: Cross multiply
    385,737.32x = 578,660.94 × 119,518.76
  4. Step 4: Simplify right side
    385,737.32x = 69,160,838,009.23
  5. Step 5: Solve for x
    x = 69,160,838,009.23/385,737.32
  6. Step 6: Final answer
    x = 179,295.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.