Home / 287,887.08-397,284.86-160,570.92

Finding the Fourth Proportional to 287,887.08, 397,284.86 and 160,570.92

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Solution

The fourth proportional to 287,887.08, 397,284.86 and 160,570.92 is: 221,588.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,887.08 : 397,284.86 = 160,570.92 : x
  2. Step 2: Convert to fraction form
    287,887.08/397,284.86 = 160,570.92/x
  3. Step 3: Cross multiply
    287,887.08x = 397,284.86 × 160,570.92
  4. Step 4: Simplify right side
    287,887.08x = 63,792,395,472.27
  5. Step 5: Solve for x
    x = 63,792,395,472.27/287,887.08
  6. Step 6: Final answer
    x = 221,588.25

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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.