Home / 287,636.56-396,952.04-160,313.06

Finding the Fourth Proportional to 287,636.56, 396,952.04 and 160,313.06

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Solution

The fourth proportional to 287,636.56, 396,952.04 and 160,313.06 is: 221,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,636.56 : 396,952.04 = 160,313.06 : x
  2. Step 2: Convert to fraction form
    287,636.56/396,952.04 = 160,313.06/x
  3. Step 3: Cross multiply
    287,636.56x = 396,952.04 × 160,313.06
  4. Step 4: Simplify right side
    287,636.56x = 63,636,597,598.81
  5. Step 5: Solve for x
    x = 63,636,597,598.81/287,636.56
  6. Step 6: Final answer
    x = 221,239.60

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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.