Home / 420,262.05-630,018.61-153,960.28

Finding the Fourth Proportional to 420,262.05, 630,018.61 and 153,960.28

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Solution

The fourth proportional to 420,262.05, 630,018.61 and 153,960.28 is: 230,803.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,262.05 : 630,018.61 = 153,960.28 : x
  2. Step 2: Convert to fraction form
    420,262.05/630,018.61 = 153,960.28/x
  3. Step 3: Cross multiply
    420,262.05x = 630,018.61 × 153,960.28
  4. Step 4: Simplify right side
    420,262.05x = 96,997,839,640.86
  5. Step 5: Solve for x
    x = 96,997,839,640.86/420,262.05
  6. Step 6: Final answer
    x = 230,803.23

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1.5x scale

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.