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Finding the Fourth Proportional to 287,528.56, 396,801.48 and 160,204.08

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Solution

The fourth proportional to 287,528.56, 396,801.48 and 160,204.08 is: 221,088.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,528.56 : 396,801.48 = 160,204.08 : x
  2. Step 2: Convert to fraction form
    287,528.56/396,801.48 = 160,204.08/x
  3. Step 3: Cross multiply
    287,528.56x = 396,801.48 × 160,204.08
  4. Step 4: Simplify right side
    287,528.56x = 63,569,216,046.04
  5. Step 5: Solve for x
    x = 63,569,216,046.04/287,528.56
  6. Step 6: Final answer
    x = 221,088.35

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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.