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Finding the Fourth Proportional to 538,657.08, 808,018.74 and 223,138.68

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Solution

The fourth proportional to 538,657.08, 808,018.74 and 223,138.68 is: 334,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,657.08 : 808,018.74 = 223,138.68 : x
  2. Step 2: Convert to fraction form
    538,657.08/808,018.74 = 223,138.68/x
  3. Step 3: Cross multiply
    538,657.08x = 808,018.74 × 223,138.68
  4. Step 4: Simplify right side
    538,657.08x = 180,300,235,058.86
  5. Step 5: Solve for x
    x = 180,300,235,058.86/538,657.08
  6. Step 6: Final answer
    x = 334,721.74

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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.