Home / 421,008.32-631,962.03-181,240.89

Finding the Fourth Proportional to 421,008.32, 631,962.03 and 181,240.89

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Solution

The fourth proportional to 421,008.32, 631,962.03 and 181,240.89 is: 272,054.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,008.32 : 631,962.03 = 181,240.89 : x
  2. Step 2: Convert to fraction form
    421,008.32/631,962.03 = 181,240.89/x
  3. Step 3: Cross multiply
    421,008.32x = 631,962.03 × 181,240.89
  4. Step 4: Simplify right side
    421,008.32x = 114,537,360,763.41
  5. Step 5: Solve for x
    x = 114,537,360,763.41/421,008.32
  6. Step 6: Final answer
    x = 272,054.87

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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.