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Finding the Fourth Proportional to 279,501.52, 385,583.12 and 164,701.74

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Solution

The fourth proportional to 279,501.52, 385,583.12 and 164,701.74 is: 227,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,501.52 : 385,583.12 = 164,701.74 : x
  2. Step 2: Convert to fraction form
    279,501.52/385,583.12 = 164,701.74/x
  3. Step 3: Cross multiply
    279,501.52x = 385,583.12 × 164,701.74
  4. Step 4: Simplify right side
    279,501.52x = 63,506,210,778.63
  5. Step 5: Solve for x
    x = 63,506,210,778.63/279,501.52
  6. Step 6: Final answer
    x = 227,212.40

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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.