Home / 402,623.13-555,630.55-218,874.06

Finding the Fourth Proportional to 402,623.13, 555,630.55 and 218,874.06

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Solution

The fourth proportional to 402,623.13, 555,630.55 and 218,874.06 is: 302,051.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,623.13 : 555,630.55 = 218,874.06 : x
  2. Step 2: Convert to fraction form
    402,623.13/555,630.55 = 218,874.06/x
  3. Step 3: Cross multiply
    402,623.13x = 555,630.55 × 218,874.06
  4. Step 4: Simplify right side
    402,623.13x = 121,613,112,402.27
  5. Step 5: Solve for x
    x = 121,613,112,402.27/402,623.13
  6. Step 6: Final answer
    x = 302,051.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.