Home / 385,330.68-578,045.25-148,741.02

Finding the Fourth Proportional to 385,330.68, 578,045.25 and 148,741.02

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Solution

The fourth proportional to 385,330.68, 578,045.25 and 148,741.02 is: 223,130.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,330.68 : 578,045.25 = 148,741.02 : x
  2. Step 2: Convert to fraction form
    385,330.68/578,045.25 = 148,741.02/x
  3. Step 3: Cross multiply
    385,330.68x = 578,045.25 × 148,741.02
  4. Step 4: Simplify right side
    385,330.68x = 85,979,040,091.16
  5. Step 5: Solve for x
    x = 85,979,040,091.16/385,330.68
  6. Step 6: Final answer
    x = 223,130.53

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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.