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Finding the Fourth Proportional to 223,316.68, 335,009.04 and 139,008.64

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Solution

The fourth proportional to 223,316.68, 335,009.04 and 139,008.64 is: 208,534.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,316.68 : 335,009.04 = 139,008.64 : x
  2. Step 2: Convert to fraction form
    223,316.68/335,009.04 = 139,008.64/x
  3. Step 3: Cross multiply
    223,316.68x = 335,009.04 × 139,008.64
  4. Step 4: Simplify right side
    223,316.68x = 46,569,151,038.11
  5. Step 5: Solve for x
    x = 46,569,151,038.11/223,316.68
  6. Step 6: Final answer
    x = 208,534.14

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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.