Home / 287,904.54-397,316.79-160,588.62

Finding the Fourth Proportional to 287,904.54, 397,316.79 and 160,588.62

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Solution

The fourth proportional to 287,904.54, 397,316.79 and 160,588.62 is: 221,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,904.54 : 397,316.79 = 160,588.62 : x
  2. Step 2: Convert to fraction form
    287,904.54/397,316.79 = 160,588.62/x
  3. Step 3: Cross multiply
    287,904.54x = 397,316.79 × 160,588.62
  4. Step 4: Simplify right side
    287,904.54x = 63,804,555,008.93
  5. Step 5: Solve for x
    x = 63,804,555,008.93/287,904.54
  6. Step 6: Final answer
    x = 221,617.05

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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.