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Finding the Fourth Proportional to 287,698.04, 397,008.74 and 160,349.02

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Solution

The fourth proportional to 287,698.04, 397,008.74 and 160,349.02 is: 221,273.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,698.04 : 397,008.74 = 160,349.02 : x
  2. Step 2: Convert to fraction form
    287,698.04/397,008.74 = 160,349.02/x
  3. Step 3: Cross multiply
    287,698.04x = 397,008.74 × 160,349.02
  4. Step 4: Simplify right side
    287,698.04x = 63,659,962,390.43
  5. Step 5: Solve for x
    x = 63,659,962,390.43/287,698.04
  6. Step 6: Final answer
    x = 221,273.54

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1.5x scale

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.