Home / 385,246.80-577,931.76-118,944.72

Finding the Fourth Proportional to 385,246.80, 577,931.76 and 118,944.72

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Solution

The fourth proportional to 385,246.80, 577,931.76 and 118,944.72 is: 178,436.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,246.80 : 577,931.76 = 118,944.72 : x
  2. Step 2: Convert to fraction form
    385,246.80/577,931.76 = 118,944.72/x
  3. Step 3: Cross multiply
    385,246.80x = 577,931.76 × 118,944.72
  4. Step 4: Simplify right side
    385,246.80x = 68,741,931,372.31
  5. Step 5: Solve for x
    x = 68,741,931,372.31/385,246.80
  6. Step 6: Final answer
    x = 178,436.09

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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.