Home / 285,965.15-428,544.53-157,939.16

Finding the Fourth Proportional to 285,965.15, 428,544.53 and 157,939.16

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Solution

The fourth proportional to 285,965.15, 428,544.53 and 157,939.16 is: 236,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,965.15 : 428,544.53 = 157,939.16 : x
  2. Step 2: Convert to fraction form
    285,965.15/428,544.53 = 157,939.16/x
  3. Step 3: Cross multiply
    285,965.15x = 428,544.53 × 157,939.16
  4. Step 4: Simplify right side
    285,965.15x = 67,683,960,158.38
  5. Step 5: Solve for x
    x = 67,683,960,158.38/285,965.15
  6. Step 6: Final answer
    x = 236,686.05

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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.