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Finding the Fourth Proportional to 319,969.04, 480,215.99 and 162,242.60

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Solution

The fourth proportional to 319,969.04, 480,215.99 and 162,242.60 is: 243,496.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,969.04 : 480,215.99 = 162,242.60 : x
  2. Step 2: Convert to fraction form
    319,969.04/480,215.99 = 162,242.60/x
  3. Step 3: Cross multiply
    319,969.04x = 480,215.99 × 162,242.60
  4. Step 4: Simplify right side
    319,969.04x = 77,911,488,783.70
  5. Step 5: Solve for x
    x = 77,911,488,783.70/319,969.04
  6. Step 6: Final answer
    x = 243,496.96

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1.5x scale

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.