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Finding the Fourth Proportional to 319,913.74, 480,165.81 and 162,252.91

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Solution

The fourth proportional to 319,913.74, 480,165.81 and 162,252.91 is: 243,529.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,913.74 : 480,165.81 = 162,252.91 : x
  2. Step 2: Convert to fraction form
    319,913.74/480,165.81 = 162,252.91/x
  3. Step 3: Cross multiply
    319,913.74x = 480,165.81 × 162,252.91
  4. Step 4: Simplify right side
    319,913.74x = 77,908,299,955.01
  5. Step 5: Solve for x
    x = 77,908,299,955.01/319,913.74
  6. Step 6: Final answer
    x = 243,529.08

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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.