Home / 385,588.55-578,501.06-172,535.82

Finding the Fourth Proportional to 385,588.55, 578,501.06 and 172,535.82

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Solution

The fourth proportional to 385,588.55, 578,501.06 and 172,535.82 is: 258,856.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,588.55 : 578,501.06 = 172,535.82 : x
  2. Step 2: Convert to fraction form
    385,588.55/578,501.06 = 172,535.82/x
  3. Step 3: Cross multiply
    385,588.55x = 578,501.06 × 172,535.82
  4. Step 4: Simplify right side
    385,588.55x = 99,812,156,435.75
  5. Step 5: Solve for x
    x = 99,812,156,435.75/385,588.55
  6. Step 6: Final answer
    x = 258,856.64

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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.