Home / 287,637.06-396,952.74-160,313.57

Finding the Fourth Proportional to 287,637.06, 396,952.74 and 160,313.57

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Solution

The fourth proportional to 287,637.06, 396,952.74 and 160,313.57 is: 221,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,637.06 : 396,952.74 = 160,313.57 : x
  2. Step 2: Convert to fraction form
    287,637.06/396,952.74 = 160,313.57/x
  3. Step 3: Cross multiply
    287,637.06x = 396,952.74 × 160,313.57
  4. Step 4: Simplify right side
    287,637.06x = 63,636,908,084.35
  5. Step 5: Solve for x
    x = 63,636,908,084.35/287,637.06
  6. Step 6: Final answer
    x = 221,240.30

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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.