Home / 287,501.45-396,752.43-160,181.51

Finding the Fourth Proportional to 287,501.45, 396,752.43 and 160,181.51

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Solution

The fourth proportional to 287,501.45, 396,752.43 and 160,181.51 is: 221,050.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,501.45 : 396,752.43 = 160,181.51 : x
  2. Step 2: Convert to fraction form
    287,501.45/396,752.43 = 160,181.51/x
  3. Step 3: Cross multiply
    287,501.45x = 396,752.43 × 160,181.51
  4. Step 4: Simplify right side
    287,501.45x = 63,552,403,333.57
  5. Step 5: Solve for x
    x = 63,552,403,333.57/287,501.45
  6. Step 6: Final answer
    x = 221,050.72

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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.