Home / 385,155.42-577,869.86-171,903.92

Finding the Fourth Proportional to 385,155.42, 577,869.86 and 171,903.92

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Solution

The fourth proportional to 385,155.42, 577,869.86 and 171,903.92 is: 257,916.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,155.42 : 577,869.86 = 171,903.92 : x
  2. Step 2: Convert to fraction form
    385,155.42/577,869.86 = 171,903.92/x
  3. Step 3: Cross multiply
    385,155.42x = 577,869.86 × 171,903.92
  4. Step 4: Simplify right side
    385,155.42x = 99,338,091,724.26
  5. Step 5: Solve for x
    x = 99,338,091,724.26/385,155.42
  6. Step 6: Final answer
    x = 257,916.90

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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.